Circular No. 01/1997/TT-BCN guides on the contents of feasibility study reports and mine design, as well as procedures for reviewing and approving mine designs.

CIRCULAR
Guidelines on the content of feasibility study reports

design of mines and procedures for reviewing and approving mine designs

Implementing Decree No. 68/CP dated November 1, 1996 of the Government detailing the implementation of the Law on Minerals;

Pursuant to Decree No. 42/CP dated July 16, 1996 of the Government promulgating the Regulations on Investment Management and Construction, and Decree No. 92/CP dated August 23, 1997 of the Government amending and supplementing certain provisions of the Regulations on Investment Management and Construction issued together with Decree No. 42/CP dated July 16, 1996;

Pursuant to Decision No. 497/BXD-GD dated September 18, 1996 of the Minister of Construction promulgating the Rules on preparation, review, and approval of construction project designs; Circular No. 09 BKH/VPTD dated September 21, 1996 of the Ministry of Planning and Investment guiding the preparation, review of investment projects, and investment decisions;

The Ministry of Industry provides detailed guidelines on the content of feasibility study reports, mine designs, and procedures for reviewing and approving mine designs as follows:

 

I. SCOPE AND APPLICABLE OBJECTS OF THE CIRCULAR

All investment projects of all economic sectors within domestic sources of capital and foreign direct investment projects in the field of mineral exploitation in Vietnam.

All organizations and individuals participating in mineral exploitation activities, and consulting agencies engaged in mine design when preparing investment projects and mine designs (including technical designs and construction-execution mining designs).

This Circular does not apply to the activity of "exhaustive exploitation" as defined in the Law on Minerals.

 

II. CONTENT OF FEASIBILITY STUDY REPORTS AND MINE DESIGNS

II.1- Content of feasibility study reports for mining exploitation.

The content of feasibility study reports for open-pit and underground mining projects is specified in Appendix 1 and Appendix 2 of this Circular.

For Group A projects and some Group B projects if a preliminary feasibility study report must be prepared, its content must comply with the guidance provided in Appendix 1 of Circular No. 09 BKH/VPTD dated September 21, 1996 of the Ministry of Planning and Investment guiding the procedures for preparing, reviewing investment projects, and making investment decisions.

For projects with foreign direct investment (except for special cases related to large-scale and complex investment projects), the feasibility study report for mining exploitation is prepared and reviewed together with the application for investment license (joint venture contracts, company regulations, etc.) according to the regulations on the formation, review, and implementation of foreign direct investment projects issued by the Government.

II.2- Content of mine designs.

The content of open-pit and underground mining designs is specified in Appendix 3 and Appendix 4 of this Circular.

 

III- PROCEDURES FOR REVIEWING AND APPROVING MINE DESIGNS.

III.1- Content of mine design reviews.

Mine designs by all organizations and individuals, both domestic and foreign, shall be reviewed based on the following contents:

1. Legal basis of the design dossier: legal status of the designing organization; compliance of the design with the approved investment project; adherence to construction technical standards and current regulations applicable to the mining and mineral processing industry;

2. Reasonableness of the layout of infrastructure facilities serving mining operations on the industrial site, the safety level of these structures (houses, roads, etc.) in terms of labor safety, environmental protection, and safety for adjacent structures during construction and use;

3. Technical and technological basis for mining that is appropriate to geological conditions to maximize the recovery of explored mineral reserves, rational use of resources, and environmental protection, specifically:

The reasonableness of the delineation of the boundary for open-pit mining methods, the boundary for underground mining methods, and the parameters of the mine boundary at the end of mining;

The reasonableness of the choice of panel development options for specific seam characteristics as well as the selected mining system;

The reasonableness of the chosen mining system and its parameters such as: height of mining levels, height of final stopes, slope angle of benches, ensuring safety during mining, and suitability to the mechanical properties of the rock mass;

The reasonableness of the selection of tunnel cross-sections and tunnel support (when using underground mining methods) considering the mechanical properties of the roof, walls, and floor of the tunnels, ensuring the stability of the tunnels throughout the mining process;

Safety levels for people and structures needing protection in the vicinity during the blasting and drilling process;

The reasonableness and safety levels of water drainage systems, ventilation systems for transport tunnels, mining tunnels, etc.;

4. Technological basis for mineral processing (for projects involving mineral processing): The reasonableness of mineral processing technology to ensure maximum recovery of primary minerals and accompanying minerals, and to ensure labor safety and environmental protection in the processing area.

For mining works belonging to state-funded investment projects, in addition to the above technical content, the following economic aspects are also reviewed:

Economic and technical indicators compared to the approved project;

The appropriateness of the total budget estimate compared to the reviewed and determined reasonable total cost, ensuring it does not exceed the total investment amount recorded in the investment decision.

III.2- Principles and procedures for reviewing and approving mine designs.

III.2.1- For mine designs of state-owned enterprises' investment projects.

Approval authority for mine designs of state-owned enterprises' investment projects is stipulated in Clause 2, Article 45 of Decree No. 68/CP dated November 1, 1996 of the Government detailing the implementation of the Law on Minerals as follows:

Mine designs of Group A projects are approved by the Minister of Industry;

The procedures for reviewing and approving mine design of state-owned enterprises shall comply with the provisions of the "Regulation on the Preparation, Review, and Approval of Construction Project Designs" issued together with Decision No. 497/BXD/GĐ dated September 18, 1996, by the Minister of Construction - Ministry of Planning and Investment - Ministry of Finance.

III.2.2 - For mine designs of investment projects of non-state-owned enterprises.

The authority to review mine designs of investment projects of non-state-owned enterprises as stipulated in Clause 4, Article 45 of Decree No. 68/CP dated November 1, 1996, of the Government is as follows:

For investment projects licensed for exploitation by the Ministry of Industry, the mine design shall be reviewed by the specialized agency of the Ministry of Industry before submitting to the Minister of Industry for approval;

For investment projects licensed for exploitation by the Chairman of the People's Committee of provinces and centrally-administered cities, the mine design shall be reviewed by the specialized agency of the provincial or city People's Committee before submitting to the Chairman of the People's Committee of the province or city for approval.

The procedures for reviewing and approving mine designs of non-state-owned enterprises shall comply with the provisions of the "Regulation on the Preparation, Review, and Approval of Construction Project Designs" issued together with Decision No. 497/BXD/GĐ dated September 18, 1996, of the Ministry of Construction and Circular No. 08/TTLB dated November 25, 1997, of the Joint Ministries of Construction - Planning and Investment - Finance.

III.2.3 - For mine designs of projects with direct foreign investment.

Mine designs of projects with direct foreign investment of all scales shall be reviewed by the specialized agency of the Ministry of Industry and approved by the Minister of Industry before implementation. The application for review and approval of mine designs shall be submitted to the Board of Design Feasibility Studies, Mineral Resources Activity Reports, Ministry of Industry, at No. 6 PhamNguLao Street, Hanoi.

III.2.3.1 - Documents for submission:

The documents for submission for review and approval of mine designs include:

Application for approval of mine design (Form No. 1);

Copy of the Investment License;

Copy of the Mining License, accompanied by a map of the mining area;

Mine design (three copies).

III.2.3.2 - Organization for review:

The specialized agency of the Ministry of Industry responsible for reviewing mine designs must prepare necessary materials and other required tasks for the review, draft the review report, and prepare documents to submit to the Minister of Industry for decision.

III.2.3.3 - Time for review and submission for approval of mine designs:

Depending on the scale and complexity of each project, the time limit for reviewing mine designs of investment projects with direct foreign capital is as follows:

For mining works of mineral mines belonging to investment projects in Group A, not exceeding 45 days from the date of receipt of complete valid documents;

For mining works of mineral mines belonging to investment projects in Groups B and C, not exceeding 30 days from the date of receipt of complete valid documents.

 

IV. CONTENT OF THE APPROVAL DECISION:

The content of the approval decision for mine designs (Forms No. 2 and No. 3) for mining projects of organizations and individuals both within and outside the country includes:

Name of the mineral mine and location of the mining area designed;

Method of mining (open-pit, underground, etc.);

Production capacity (or production volume);

Duration of operation of the mine;

Main technical parameters:

Applied mining technology (brief description);

List of mining and processing equipment (if any) used in the technological chain;

Quantity of basic construction (internal mine roads, stripping volumes, etc.);

Infrastructure facilities serving mining operations (housing, roads, etc.);

Solutions and progress of basic construction of the mine;

Total budget estimate (for projects using state funds);

Matters to note;

Relevant organizations are responsible for implementing the Decision.

 

V. IMPLEMENTATION PROVISIONS:

This Circular shall be uniformly applied throughout the country and takes effect from February 1, 1998. Previous regulations contrary to this Circular are abolished.

During implementation, if there are issues requiring supplementation or adjustment, the implementing agencies shall report in writing to the Ministry of Industry for study and resolution.

APPENDIX 1

GUIDELINES FOR THE CONTENT OF THE FEASIBILITY STUDY REPORT
OPEN-PIT MINING OF MINERAL MINE

 

PREAMBLE

PART I - GENERAL OVERVIEW OF THE PROJECT

I. INVESTOR AND CONTACT INFORMATION ETC...

Name of the investor:

Contact address:

Telephone... Fax:...

II. NECESSITY FOR ESTABLISHING THE PROJECT

a/ Origin and legal bases for establishing the project.

b/ Source of the used documents.

c/ Relevant economic and social policies for industry development and priorities defined.

d/ Investment exploitation objectives for that type of mineral: For domestic use, export, or to replace imported goods.

e/ Market analysis.

III. SELECTION OF INVESTMENT FORM AND CAPACITY

a/ Analysis of conditions and benefits of the selected investment form and capacity.

b/ Analysis of production scale and types of products expected.

IV. PRODUCTION PROGRAM AND REQUIREMENTS TO BE MET

a/ Production and services provided:

Product and service structure: Annual volume of minerals extracted, quality (raw or processed product). Expected sales volume, average inventory level.

b/ Input requirements and solutions to ensure them:

Based on the annual production volume of the mine and equipment requirements, calculate the needs to be met for mine operations such as electricity, water, raw materials for extraction and processing (if applicable)...and propose solutions to meet these needs.

V. SELECTION OF CONSTRUCTION SITE

 

PART II - ECONOMIC, SOCIAL AND GEOLOGICAL CHARACTERISTICS OF THE MINERAL DEPOSIT
GEOLOGICAL CHARACTERISTICS OF THE MINERAL DEPOSIT

I- ECONOMIC AND SOCIAL CONDITIONS

1/ Geographical location of the mining area.

2/ Economic and social conditions.

Local economic development situation, social conditions, and population. The role of the mine in the community, difficulties and advantages.

3/ Project logistical conditions

Power supply, water supply. Labor sources, including management staff, workers, technical personnel (training, recruitment, recruitment methods, etc.).

Technical material resources including construction materials, roads, buildings, other technical materials used during the basic construction period of the mine and during normal operation.

4/ Transportation and communication conditions: Existing railway, road, waterway, and communication systems in the area.

II- MINERAL DEPOSIT GEOLOGICAL CONDITIONS

Natural geographical characteristics, climate, hydrology, exploration history, geological features of the region, deposit geology, engineering geology, hydrogeology, approved geological reserves, assessment of exploration depth and recommendations for additional exploration...

 

PART III - TECHNICAL SOLUTIONS

1- BOUNDARIES AND RESERVES OF THE OPEN PIT

Principles and basis for determining the boundaries of the open pit, basic parameters of the open pit (both surface and bottom boundary), explanation of the application of open-pit mining method, boundary of underground mining method (if applicable). Calculation of the extractable mineral reserves within the determined boundaries (after deducting losses).

2- WORKING REGIME, MINING CAPACITY AND LIFE SPAN OF THE MINE

Working regime of the mine (for each part: direct mining, indirect mining, processing (if applicable)) based on the number of working days, rest days according to the Labor Code and specific mining conditions.

Selected mining capacity for the design of the mineral type, calculated in terms of raw blocks, raw materials, and processed products (if applicable).

Mine life span determined based on extractable reserves and designed mining capacity (including basic construction time, time with designed capacity, and closure time).

3- MINE DEVELOPMENT AND MINING SEQUENCE

Mine development plan (stripping) chosen based on topographic conditions and ore body characteristics.

General mining sequence for the entire mine and individual sequences for each ore body or open pit of the mine.

4- MINING SYSTEM

I/ Selection of the mining system based on mining conditions, general technology flow from preparation, loading, transportation, waste disposal, and processing (if applicable).

II/ Calculation of mining system parameters based on the selected system: Mining layer height, final layer height, slope angle of the mining layer, slope angle of the final layer, workbench slope angle, etc.

III/ Calculation of key technological stages such as rock preparation (including drilling and blasting if applicable), loading, transportation, and crushing (for ore and coal mines).

IV/ Synchronization of equipment used for mining based on selected mining and transportation equipment to integrate equipment types and quantities.

5- MINING TRANSPORTATION

Selection of appropriate transportation options (truck, rail, conveyor, etc.) and calculation of transportation stages for each object: Waste rock, valuable minerals, people, and materials, selection of transportation equipment types and quantities, as well as calculation of transportation route parameters (for truck and rail transport) or conveyor belt position and route.

6- WASTE DISPOSAL

Calculation of waste volume, selection of disposal site, calculation of dump capacity, technology and equipment for waste disposal.

7- WATER DRAINAGE FROM THE MINE

Calculation of water inflow into the open pit and selection of appropriate drainage methods, equipment for mine drainage (if necessary).

8- SAFETY MEASURES AND FIRE PREVENTION

Safety measures for mining technology stages and fire prevention.

9- ORE SCREENING AND PROCESSING

In cases where the project only aims at processing or grinding, the processing, grinding, and screening technology and equipment must be planned to maximize mineral resource utilization. If the project requires the establishment of a deep processing plant, a detailed processing project must be established and approved by competent authorities.

10- MECHANICAL REPAIRS AND STORAGE

Selection of auxiliary facility solutions such as components, production programs, construction scale, and equipment selection for each component (such as repair storage, equipment storage, material storage, spare parts, lubricants, etc.) to synchronize the production line according to the selected mining technology plans.

11- Supplying and equipping electricity and water for mine exploitation

Calculate loads and determine reasonable power supply solutions. Calculate the demand for domestic water and water for mine exploitation and select supply solutions.

12- Communication and automation.

Determine the level of necessity, technical solutions, choose equipment and materials, and determine the volume of construction work for communication, automation, and machine control systems at the mine.

13- Architecture and construction

Design basis and scale of construction projects serving mine exploitation, thereby proposing architectural and structural solutions.

14- Mine layout and external transportation

Based on the infrastructure projects calculated for mine exploitation, arrange the mine layout ensuring requirements such as suitability with the selected mining method and system, mine safety, convenient transportation within and outside the mine, proximity to power and water sources, etc., and select external transportation methods.

15- Construction implementation organization and project construction schedule

Organization plan for implementing infrastructure projects serving mine exploitation such as housing, roads, warehouses, etc., and stripping earth cover during the basic construction period (if applicable).

16- Section (or Chapter) on environmental impact assessment report in mineral exploitation activities.

For mineral mining projects that do not require a two-step environmental impact assessment report, the environmental impact assessment report (EIA) shall be established according to the guidelines set forth in Circular No. 1100/TT-MTg dated August 20, 1997, and other guiding documents of the Ministry of Science, Technology, and Environment.

 

PART IV- PRODUCTION MANAGEMENT ORGANIZATION AND LABOR ALLOCATION

Production management diagram:

Organize production units.

Product consumption organization.

Labor roster:

Labor roster for each direct and indirect production unit.

Labor productivity for each direct and indirect production unit.

PART V- FINANCIAL AND ECONOMIC ANALYSIS

I. Finance

I.1- Determination of the total required investment capital for the project:

The total investment capital includes preparatory investment costs, preparatory construction costs, actual investment costs, preparatory production - trial production - working capital to ensure the project's operation reaches the designed capacity.

A. Capital components:

+ Fixed capital (basic investment), including:

* New investment.

a. Construction costs for basic projects (including residential, industrial projects, and mine infrastructure such as housing, roads, docks, power stations, crushing and screening plants, initial open-pit roadways, initial mining surface preparation volumes, etc.).

b. Equipment purchase costs (including transportation, storage, and installation).

c. Other costs include:

Preparatory investment costs (including exploration, survey, project establishment, and review costs);

Construction preparatory costs include: initial land costs (compensation, land clearance, land use rights transfer), design survey and establishment costs, total budget estimates, bidding costs, completion of investment procedures (construction permits, equipment appraisal and testing, etc.). Construction road and water supply costs, construction camp costs (if applicable);

Investment management and supervision costs;

Trial production and acceptance costs.

d. Contingency costs.

e. Mine closure costs, environmental recovery reserve estimates.

g. Capital mobilization costs: Interest on borrowed funds for projects using loans and fees payable during the investment period (excluding interest on funds raised by Party B).

* Existing fixed assets (already invested).

Operating capital (working capital), including:

Production capital: Raw material, electricity, water, steam, fuel, spare parts, etc. costs.

Circulation capital: Work-in-progress inventory, finished goods inventory, consignment goods, cash capital, marketing expenses, etc.

B. Sources of capital:

Tier 1 own capital

Contributed capital (joint stock company, joint venture, etc.)

State capital allocation (for state-owned enterprises)

Borrowed capital (short-term, medium-term, long-term, domestic and foreign loans) loan terms and conditions, repayment schedules, bases, and guarantees for securing capital.

Forms of capital:

Vietnamese currency, foreign currency

In kind

By assets (deferred payment, equipment, raw materials)

Other forms.

Implementation schedule for capital expenditure (mobilized according to the investment program)

I.2- Calculation tables

Investment capital calculation table by construction items (specify quantity, unit price, and cost)

Equipment purchase cost (specify equipment code, quantity, unit price, and cost)

Other costs.

Operating capital (working capital) calculation table

Product cost

Revenue

Projected profit and loss

NPV (Present Value)

IRR (Internal Rate of Return)

Capital mobilization table for debt repayment according to the loan repayment schedule including both principal and interest.

II- Economic and social analysis.

Diversification of economic production

Employment and income of workers

Budget contribution

Foreign exchange earnings

Social and environmental benefits (social objectives achieved by the project, beneficiaries)

Conclusion and Recommendations

Attached drawings

A. Geological section

1. Topographic map of the mine area Scale 1/1,000; 1/2,000)

2. Mineral resource reserve map (scale 1/1,000; 1/2,000)

3. Representative geological cross-sections (scale 1/500; 1/1,000)

B. Mining and layout section

1. Longwall mining plan map (scale 1/2,000; 1/5,000)

2. Mine basic construction completion map (scale 1/1,000; 1/2,000)

3. Mining maps from year 1 to reaching designed capacity (scale 1/1,000; 1/2,000)

4. Mining phase transition map (if applicable) (scale 1/2,000; 1/5,000)

5. Mine closure map (scale 1/2,000; 1/5,000)

6. Layout diagrams and elements of the mining system

7. Drilling and blasting parameters drawing (if applicable)

8. Mine overall layout map (scale 1/2,000; 1/5,000)

9. Underground mine exploitation area map (using UTM coordinates)

 

ANNEX NO. 2

GUIDELINES FOR THE CONTENT OF THE FEASIBILITY STUDY REPORT
UNDERGROUND MINING OF MINERAL DEPOSITS

 

FOREWORD

PART I - GENERAL OVERVIEW OF THE PROJECT

The content requirements in Part I are similar to the requirements in the guidance for preparing feasibility study reports for open-pit mining of mineral deposits in Appendix 1

 

PART II - ECONOMIC AND SOCIAL CHARACTERISTICS AND GEOLOGICAL FEATURES OF THE MINES.

The items and contents required under the items as set out in Part II of the guidelines for the content of the feasibility study report on open-pit mining of mineral resources in Appendix No. 1.

 

PART III - TECHNOLOGICAL SOLUTIONS.

1. Boundaries and reserves of the mine.

Mine boundaries according to the north, south, east, west directions; upper boundary, lowest level of exploitation; size of the mine along the axis (length, width, area). Reserves of the mine: Calculation of geological reserves, industrial reserves.

2. Working system, capacity, and life span of the mine.

The working system of the mine (for each part; direct exploitation, indirect exploitation, processing (if any)) based on the number of working days, rest days stipulated by the Labor Code and specific exploitation conditions of the mine.

Propose capacity options: based on investment conditions, exploitation forecasts, production experience, equipment, market consumption, etc., there must be at least two capacity options.

The life span (existence time) of the mine is determined based on the exploitable reserves and the designed exploitation capacity (including the basic construction period of the mine, the exploitation period with designed capacity, and the closure period of the mine).

3. Mine development and preparation of the mining area.

+ Development: Development options, description of proposed options, advantages and disadvantages, etc. (at least two options should be presented for decision-making).

+ Preparation of the mining area: Diagram of mining area preparation (layer division, layering, section division, etc.); Tunnel excavation preparation plan (rock tunnel excavation, seam tunnel excavation); Length of the mining area, market tunnel, etc.

+ Exploitation sequence of areas and seams: Analysis and argumentation, selection of the exploitation sequence of areas and seams (ore bodies), simultaneous extraction from top to bottom, etc.

+ Volume of tunnels for development and preparation of the options to reach the designed capacity by the end of the year, including rock tunnels and seam tunnels or ore body tunnels (horizontal tunnels, inclined tunnels, vertical shafts, inclined shafts).

4. Mine shafts, surface yards, and bottom station of the shaft.

Argumentation of passability capability, selection of cross-section, anti-collapse materials; selection of bottom yard type; listing main and auxiliary shaft parameters; listing of lifting equipment.

5. Ore cars.

Determine the requirements for various types of ore cars and their technical characteristics, quantity of ore cars for transporting valuable minerals, waste rock, anti-collapse materials, and personnel.

6. Hoisting equipment (lifting devices).

Argumentation of solutions and determination of types and quantities of equipment for hoisting operations such as main shaft hoists, auxiliary shaft hoists, inclined shaft hoists.

7. Mining system, mechanization of mining and tunnel preparation.

Argumentation to select a reasonable mining system ensuring the designed capacity, saving anti-collapse materials, safety, and suitability with geological conditions of seams, determining mechanized means in the market tunnel.

Calculation of parameters of the mining system; argumentation and selection of tunnel preparation means; technical characteristics of mining and tunnel preparation equipment.

Organization of tunnel excavation (anti-collapse support passport, organization chart) in the market tunnel and preparation tunnel. Drilling and blasting work in the market tunnel and preparation tunnel (if applicable).

8. Transportation within the tunnel.

Determination of reasonable transportation methods and types and quantities of transport equipment at the main transportation level, intermediate transportation level, and inclined tunnel, etc., based on the development and preparation diagram to ensure transportation of valuable minerals, waste rock, materials, and personnel according to capacity options, development plans, etc.

9. Mine ventilation.

Determination of optimal ventilation schemes, rational selection of fan types and quantities for each area and the entire mine according to development stages based on the development and preparation diagram and the mining system of technological options, volume of construction works needed for ventilation.

10. Safety technology and industrial hygiene.

Measures against explosive gases, explosive dust (if applicable), noise reduction measures, fire prevention measures, water bursting prevention, gas spouting prevention (if applicable), etc.

11. Dewatering.

Preliminary dewatering measures for the ore body (if necessary) and reasonable drainage for the mine, selection of pumps and drainage diagrams suitable for drainage requirements to ensure safe mining operations.

12. Surface technological complex.

Solutions for receiving mined minerals brought out from the mine and transporting them to the loading point; transporting waste rock to the dump site; transporting materials, personnel, and mining equipment into the tunnel (including tunnel filling materials), based on which calculate the required equipment and determine construction works.

13. Tunnel backfilling (if applicable).

Solutions for organizing tunnel backfilling from material extraction, material preparation, material delivery into the tunnel, and backfilling technology, selection of equipment, and determination of construction volumes related to tunnel backfilling.

14. Auxiliary workshops.

Selection of auxiliary facility solutions such as components, production programs, construction scale, and equipment selection for each component (such as repair warehouse, equipment warehouse, material warehouse, spare parts warehouse, lubricant warehouse, anti-collapse equipment warehouse, and large equipment warehouse; workshop for anti-collapse work and grease application; maintenance and lubrication block of ore cars, etc.) to synchronize the production chain according to selected mining technological options.

15. Power supply and electrical equipment.

Calculation of electrical loads and determination of reasonable power supply solutions.

16. Communication - Automation and machine control.

Determination of the level of necessity, technical solutions, equipment, material selection, and construction volume for the communication - automation and machine control system of the mine.

17. Compressed air supply.

Determination of compressed air requirements and selection of reasonable compressed air supply solutions.

18. Architectural and construction works.

Architectural and construction solutions for ground-level facilities and construction volumes. Fire prevention, ventilation, lighting, and temperature regulation solutions (if necessary).

19. Water supply and drainage.

Solutions for water supply for living and production needs, firefighting, and drainage of various types of wastewater from the mine.

20. General layout - transportation.

Solutions for the overall layout plan, transportation solutions within the mine area and transport service facilities, and landscaping works on the surface (such as greenery, water bodies, etc.).

21. Construction organization.

Scheme for organizing construction of project components on the mine surface such as installation work, equipment, labor force, construction units, supply of building materials, power and water sources, etc.

Scheme for organizing construction of underground tunnel projects: installation work, equipment, labor force, construction units, supply of building materials, power and water sources, construction time, etc.

22. Part (or Chapter) of the Environmental Impact Assessment report in mining (processing) activities.

For mining projects that do not require a two-step environmental impact assessment report, the Environmental Impact Assessment (EIA) report shall be established according to the guidelines set out in Circular No. 1100/TT-MTg dated August 20, 1997 and other guiding documents of the Ministry of Science, Technology and Environment.

 

PART IV - MANAGEMENT ORGANIZATION AND LABOR DEPLOYMENT

The items and contents required as specified in Part IV of the guidance on the content of feasibility study reports for open-pit mining of mineral deposits in Appendix No. 1.

 

PART V - FINANCIAL AND ECONOMIC ANALYSIS.

The items and contents required as specified in Part V of the guidance on the content of feasibility study reports for open-pit mining of mineral deposits in Appendix No. 1.

Conclusions and recommendations.

Attached drawings

A. Geological section

1. Map of the location of the mine area

2. Map of reserves of seams (ore bodies) (scale 1/1,000-1/2,000)

3. Typical geological cross-sections (scale 1/500-1/1,000)

4. Columns of strata, drilling diagrams, etc.

B. Open-pit Section:

1. Plan view of the open-pit boundary and positions of main adit entrances (scale 1/2,000; 1/5,000)

2. Maps of preparatory development for various schemes (scale 1/5,000; 1/2,000)

3. Cross-sectional view through the main adit (scale 1/2,000)

4. Plan view of the main adit section (scale 1/2,000)

5. Tunneling schedule and schemes

6. Mining schedules for various schemes

7. Plan view of the bottom-of-shaft station with accompanying chambers including water storage chambers (scale 1/200)

8. Plan view of the mining system with work organization charts, manpower charts, technical indicators (scale 1/200)

9. Drainage and dewatering plan (which may be combined with the general layout plan and preparatory development maps of selected schemes)

10. Plans of power supply systems inside and outside the mine. Layout plan of power grid supplying the mine, transformer stations, lighting houses, etc. (which may be combined with the general layout plan)

11. Plan view of the communication, automation, and machinery control network throughout the mine.

12. Water supply and drainage plan (which may be combined with the general layout plan)

13. General layout plan of the mine (showing power grid, water supply, drainage channels, roads, greenery, cross-sections of automobile and railway roads if applicable)

 

ANNEX NO. 3

GUIDELINES FOR THE CONTENT OF OPEN-PIT MINING DESIGN

 

I- EXPLANATORY SECTION

I.1 - General Explanations

Basis and grounds for establishing the mine design;

Main content of the investment decision (for state-funded projects) or investment permit (for non-state-funded projects);

Summary of the chosen design and comparative design options.

Technical parameters and standards achieved by the project according to the chosen option.

Appendices of copies of approvals and agreements for each stage of the design, list of construction standards, design standards, procedures and regulations used in mining operations.

I.2 - Explanatory Materials on Natural Conditions

Topographic data, geological exploration reports, hydrogeological and engineering geological surveys collected from the mine area and assessments of their adequacy for mine design.

Unforeseen conditions arising during the feasibility study phase.

I.3 - Technical and Technological Section

1. Current status of the design area.

2. Boundaries and Reserves.

Determination of the boundaries of the open-pit and detailed calculation of the industrial reserves of the designed mineral. Selection of options for extracting and processing associated valuable minerals (if any).

3. Working regime, capacity, and life span of the mine.

Determination of the designed capacity of the mine, working regime, life span, and mining schedule.

4. Mine opening and mining sequence.

Mine opening scheme (opening seam), parameters of seam opening trenches, calculation of basic construction volumes of the mine.

General mining sequence for the entire mine and specific sequences for individual areas.

5. Mining System

Selection of the mining system and calculation of its elements including: height of mining levels, height of final levels, slope angle of mining benches, slope angle of final benches, slope angle of working and final bench edges, width of working and final bench faces, width of stripping benches, length of working and footwall benches (if any), etc., compilation of a summary table of mining system elements.

6. Calculation of Mining Process Stages

Based on the selected mining system, calculate the stages in the mining process chain including preparation, extraction, and leveling. In each stage, provide reasoning for the selection of equipment type, model, calculation of equipment capacity, and quantity of each type of equipment to ensure the designed production volume.

7. Internal Mine Transportation

Selection of transportation options for the mine and calculation of transportation tasks, calculation of transportation equipment types and quantities.

8. On-site Processing Line (Crushing and Screening)

For projects involving ore dressing (or crushing and screening at the mine site), provide reasoning for the selection of ore dressing technology (or crushing and screening) aimed at maximizing resource recovery at the mine site, present a technological flow diagram for ore dressing (crushing and screening), and calculate the capacity, types, and quantities of equipment in the processing line.

9. Waste Rock Disposal

Annual volume of waste rock to be disposed of and disposal schemes regarding location, capacity, and method of disposal at the waste dump, sequence and schedule of disposal during different periods of mine operation.

10. Mine Drainage.

Estimate the sources of water flowing into the mine (surface water, groundwater, etc.) and calculate the total amount of water flowing into the mine in a year, as well as the flow rate of water flowing into the mine on a daily and hourly basis, based on which to develop reasonable drainage plans for the mine, select equipment and the quantity of equipment serving the drainage process, and solutions to reduce the inflow of water into the mine.

11. Engineering techniques.

Calculations for power supply, water supply, steam, electricity, and oil for the mine.

Internal and external communication systems within the mine, signals, and automation.

Mechanical repair work and warehouse management.

12. Architecture, construction, and overall layout of the mine.

Design and scale of construction for facilities serving mining operations at the mine, architectural and structural solutions for these facilities.

Overall layout of the mine ensuring requirements such as compatibility with the selected panel development plan and mining system, safety from dust, explosions, and noise, convenience for transportation both inside and outside the mine, proximity to power and water sources, selection of external transportation methods.

13. Occupational safety and industrial hygiene.

Measures to ensure occupational safety at each stage of the mining technology chain, industrial hygiene measures during the mining process.

14. Production management organization and labor deployment.

Production management chart and staffing for each production unit (direct and indirect production). Labor productivity.

15. Mine construction work.

Measures for construction to ensure technical requirements, design specifications, and safety of mine construction work including:

Basic construction work for the mine;

Construction of auxiliary areas and processing zones (if applicable)

I.4- Economic Section.

Summary of construction quantities, list of equipment needs.

Capital investment for basic construction of the mine.

Direct and indirect labor needs.

Needs for fuel, raw materials, supplies, etc., when the mine begins production.

Revenue from selling products of the mine.

Product cost

Production and investment efficiency.

Financial analysis.

Accompanying the explanatory section of the above objectives are tables and appendices for calculations.

II- DRAWING SECTION.

II.1- Geological Section:

1. Map of the location of the mine area (scale 1/10,000 or 1/25,000)

2. Original coordinate grid map of the mine

3. Topographic map of the design area (scale 1/1,000 or 1/2,000)

4. Plan for mineral resource reserves (or ore body distribution map) (scale 1/1,000; 1/2,000)

5. Maps of pillar and wall isopachs for each seam (or ore body).

6. Typical geological cross-sections (scale 1/5,000; 1/1,000)

7. Hydrogeological and engineering geological maps (scale 1/2,000; 1/5,000)

II.2- Mining Section:

1. Mine opening map (panel opening) (scale 1/1,000 or 1/2,000)

2. Drawings during the basic construction period including completion drawings of the basic construction period (scale 1/1,000 or 1/2,000), including underground road construction drawings (if applicable)

3. Mining, road, and waste disposal site drawings for years five, ten, etc., and upon mine closure (scale 1/1,000 or 1/2,000).

4. General layout map of facility arrangements and surface technical systems (scale 1/2,000 or 1/5,000)

5. Diagram of the selected mining system.

6. Drilling and blasting network parameters drawing (if applicable).

7. Overall layout and construction site plan for special projects.

8. Drawings of power supply diagrams, drainage systems, buildings, and other industrial facilities (if applicable).

For mining section drawings serving construction of mining works (panel opening maps, annual mining drawings), specific guidance on construction methods implementing the selected plan, summary tables of construction volumes, construction equipment, etc., must be included.

 

III- TOTAL ESTIMATE SECTION

Basis for preparing the total estimate

Explanation and consolidation of construction quantities for each project (forecast).

The total estimate is prepared according to the construction volume of the aforementioned projects and in accordance with guidelines for pricing and construction cost management issued by the Ministry of Construction for investment projects.

ANNEX NUMBER 4

GUIDELINES FOR THE DESIGN OF UNDERGROUND MINE DEVELOPMENT
MINERAL EXTRACTION

 

I- EXPLANATORY SECTION

I.1- General Description.

As per the guidelines for preparing the design of open-pit mines.

I.2- Explanatory Materials on Natural Conditions.

As per the guidelines for preparing the design of open-pit mines.

I.3 - Technical and Technological Section

1. Current characteristics of the design area

2. Reserve boundaries of the mining area

Determine the boundaries and calculate the reserves of the mining area by level (mining level), by grade, by block, zone (if applicable). Calculate geological reserves and the exploitable mineral quantity after deducting losses.

3. Working conditions and designed capacity, mine life.

General organization of working conditions at the mine, selection of designed capacity of the mine (by raw ore, processed product if applicable) and calculation of the mine's lifespan based on industrial reserves and mining capacity.

4. Development of the mining area

Principles and selected development methods (describe the method)

5. Preparation of the mining area.

Diagram of mining area preparation, length of mining zones, marketplaces, etc., sequence of mining for zones and seams (or ore bodies). Calculation of quantities for various development tunnels.

6. Rail cars

Selection of types and detailed calculation of the number of rail cars for transporting valuable minerals, waste rock, materials, etc.

7. Hoisting equipment (if applicable)

Selection and calculation of the number of hoisting equipment for main and auxiliary shafts (if applicable).

8. Mining system - mechanization of marketplace and preparation tunnel work - volume of preparation tunnels.

Selection of the mining system, determination of mechanized means for marketplace mining work, mechanization of preparation tunnel excavation; Quantities and volumes of preparation tunnels.

9. Transportation within the mine.

Principles for selecting transportation modes, transportation diagrams and solutions, types and quantities of transportation equipment for transporting waste rock, valuable minerals, materials, and personnel.

10. Mine ventilation.

Overview of mine ventilation work, calculation of required air volume for mine ventilation, ventilation diagram and distribution, adjustment of airflow, calculation of pressure drop in the tunnel network, calculation of main fan.

11. Safety and industrial hygiene techniques.

Measures against dust explosions and gas explosions (if applicable), fire prevention measures in mines, safety measures during construction and production.

12. Dry removal and drainage.

General characteristics of dry removal work at the mine, calculation of water flow rates in adits and shafts (if applicable), selection of drainage solutions for the mine (for adits, shafts, surface drainage) and calculation for the drainage phase (regarding types, quantities of mine drainage pumps), solutions to reduce water inflow into the mine.

13. Surface technological complexes.

Calculation of surface technological complexes including: mineral transport technology complex; waste rock transport technology complex; timber support and equipment transport technology complex; personnel transport technology complex.

14. Auxiliary workshops.

Components of auxiliary workshops, existing auxiliary facilities, new auxiliary facilities to be constructed, etc.

15. Power supply and electrical equipment.

Calculation of power load, main solutions for power supply (sources and power supply diagrams), power supply and electrical equipment in adits, substations and high-voltage transmission lines, power supply and electrical equipment on the surface, lighting and lighting equipment, lamp houses, grounding calculations and lightning protection equipment, power supply indicators.

16. Communication and automation.

Communication system for production scheduling, production command, and administrative departments, automation and machine control work.

17. Compressed air supply.

Calculation of compressed air equipment and compressed air usage requirements, selection of appropriate compressed air supply solutions, choice of compressed air equipment and quantity.

18. Architecture and Construction.

Basic data for design, components of buildings and structures on the surface, architectural and structural solutions.

19. Water Supply and Drainage.

Standards and water supply needs (quantity, quality, and supply schedule), water supply diagram and sources, amount of water to be drained and mine drainage diagram, fire-fighting water supply diagram.

20. Overall Transport Layout.

Current status of the layout (overall layout, waste rock transport layout, external transport layout), technical solutions for transport layout, drainage, and protective works.

21. Construction organization.

Organization of construction on the layout (total volume of work, construction time, construction methods, installation methods, construction phases, safety measures during construction), organization of underground construction;

22. Production Organization.

Production organization diagram of the mine (number of workers and staff for each production unit), labor productivity calculation of the mine.

23. Financial and Economic Aspects.

Determination of basic construction investment capital (volume, system of unit prices and construction regulations applied to calculate capital, method of calculating capital). Results of basic construction investment capital calculation. Sales revenue. Product cost (basis for calculation, method of calculation). Average annual profit, financial analysis and loan repayment period.

24. Conclusion.

 

II. PART OF DRAWINGS

II.1- Geological Section:

1. Mine location map (scale 1/5,000; 1/10,000).

2. Coal seam reserve calculation plan (scale 1/1,000; 1/2,000).

3. Geological cross-sections of exploration lines, drilling plans.

II.2 - Mining and Layout Part

1. Mining area boundaries and locations of adit entrances (scale 1/1,000; 1/2,000)

2. Level development schematic (1/1,000; 1/2,000)

3. Schematic of drifts prepared for seams (1/2,000; 1/5,000)

4. Cross-sections of main drifts. Passages to prevent various types of drifts, shafts, etc. (scale 1/1,000; 1/2,000)

5. Drift excavation schedule for basic construction.

6. Diagram of surface and overall mine power supply principle.

7. Mining schedule.

8. Diagram of surface and overall mine power supply principle.

9. Diagram of underground power supply principle.

10. Diagram of telephone communication organization on the surface and in the mine.

11. Ventilation diagram during the period of reaching designed capacity.

12. Comprehensive mine layout diagram.

13. Layout diagram of adit entrances, industrial yards.

14. Drawings related to screening and processing work (if applicable).

For mining section drawings serving construction of mining works (panel opening maps, annual mining drawings), specific guidance on construction methods implementing the selected plan, summary tables of construction volumes, construction equipment, etc., must be included.

 

III - PART OF TOTAL ESTIMATE.

Basis for preparing total estimate

Explanation and consolidation of construction quantities for each project (forecast).

The total estimate is prepared according to the construction volume of the aforementioned projects and in accordance with guidelines for pricing and construction cost management issued by the Ministry of Construction for investment projects.

 

FORM NO. 1

Name of organization or individual SOCIALIST REPUBLIC OF VIETNAM

mining) Independence - Freedom - Happiness

Number.../TTTĐ

...day...month...year 199

PETITION FOR REVIEW AND APPROVAL OF MINE DESIGN
(Name and geographic location of the mine being designed for exploitation)

Respected: Minister of Industry

(Chairman of the Provincial People's Committee...)

(Name of organization or individual authorized to exploit)

We respectfully request the Minister of Industry (Chairman of the Provincial People's Committee...) to review and approve the design for exploitation of the (name of mine, administrative location of the exploitation area) with the following main contents:

1. Project Name: Name of the mine being designed for exploitation (as per the permit issued by the competent authority).

2. Exploitation Area Boundaries: Boundaries of the exploitation area as permitted.

3. Exploitable Reserve: Reserve permitted to be exploited within the boundaries of the exploitation area as per the exploitation permit.

4. Designed Capacity: Capacity (or output) based on raw ore, processed concentrate ore (if applicable).

5. Exploitation Method: Open-pit or underground.

6. Total Estimate: Total estimate already determined.

Name of organization or individual exploiting

(signature, stamp)

Place of Receipt:

.............

............

For record...

 

MODEL NO. 2

MINISTRY OF TECHNOLOGY SOCIALIST REPUBLIC OF VIETNAM

Number...QĐ/... Independence - Freedom - Happiness

Hanoi, the...day of the...month of...year 199

 

DECISION OF THE MINISTER OF INDUSTRY

Regarding approval of mine design

(Name of mine and administrative location of the exploitation area being designed)

THE MINISTER OF INDUSTRY

Pursuant to the Mineral Law dated March 20, 1996 and Decree No. 68/CP dated November 1, 1996 of the Government detailing the implementation of the Mineral Law;

Pursuant to Decree No. 74/CP dated November 1, 1995 of the Government stipulating the functions, tasks, powers, and organizational structure of the Ministry of Industry;

Considering the Petition for Review No. dated... month... year 199 of (name of organization or individual) regarding the request for review and approval of the mine design (name of mine, administrative location of the exploitation area being designed);

Considering the proposal of...at (Minutes of Review) on... day of... month... year:

At the proposal of...,

Pursuant to …;

Article 1: Approve the mine design (name of mine, administrative location of the exploitation area being designed) established by...with the main contents as follows:

Project Name:

Exploitation Area Boundaries:

Exploitation Method:

Permitted Exploitable Reserve:

Designed Exploitation Capacity:

Exploitation Period:

Exploitation Technology:

Exploitation Schedule:

Volume of basic construction and exploitation equipment:

Progress schedule for basic construction work:

The total budget estimate (for construction works under projects using state capital)

Article 2: (Name of organization or individual permitted to exploit) shall be responsible for:

Managing and organizing the implementation of basic construction work. Exploiting the mine according to the approved design and in accordance with other relevant legal documents;

Implementing current laws on labor safety, environmental protection, and ecological preservation in the field of mineral extraction and processing;

Article 3: This Decision takes effect from the date of signing. The Director of the Ministry's Office, Heads of relevant Departments and Divisions under the Ministry, (organizations and individuals permitted to exploit) shall be responsible for implementing this Decision;

Minister of Industry

(signature, stamp)

Place of Receipt:

-............

-...........

- File...

 

MODEL NO. 3

PEOPLE'S COMMITTEE OF THE SOCIALIST REPUBLIC OF VIET NAM

(PROVINCE, CITY)... Independence - Freedom - Happiness

No.../QD/PC

...,day...month...year 199...

DECISION OF THE PEOPLE'S COMMITTEE OF PROVINCE, CITY...

Regarding approval of mine design

(Name of mine and administrative location of the exploitation area being designed)

CHAIRMAN OF THE PEOPLE'S COMMITTEE OF PROVINCE, CITY...

Pursuant to the Mineral Law dated March 20, 1996 and Decree No. 68/CP dated November 1, 1996 of the Government detailing the implementation of the Mineral Law;

Pursuant to the Law on the Organization of People's Councils and People's Committees (amended) dated June 21, 1994;

Pursuant to Circular No./1997/TT-BCT dated... month... year 199... of the Minister of Industry guiding the contents of feasibility studies, mine designs, and procedures for reviewing and approving mine designs;

Considering the request for review No... dated... month... year 199... of (name of organization or individual) regarding the request for review and approval of the mine design (name of mine, administrative location of the designed mining area);

Considering the proposal of... at (Minutes of Review) dated... month... year;

At the proposal of...,

DECISION:

Article 1: Approving the mine design (name of mine, administrative location of the designed mining area) established by... with the main contents as follows:

Project Name:

Exploitation Area Boundaries:

Exploitation Method:

Permitted Exploitable Reserve:

Designed Exploitation Capacity:

Exploitation Period:

Exploitation Technology:

Exploitation Schedule:

Quantity of basic construction and mining equipment:

Progress schedule for basic construction work:

The total budget estimate (for construction works under projects using state capital)

Article 2: (Name of organization or individual permitted to exploit) shall be responsible for:

Managing and organizing the implementation of basic construction work and mine exploitation according to the approved design and in accordance with other relevant legal documents;

Implementing current laws on labor safety, environmental protection, and ecological preservation in the field of mineral extraction and processing;

Article 3: This Decision takes effect from the date of signing. The gentlemen..., (name of organization or individual permitted to exploit) shall be responsible for implementing this Decision;

SEAL/People's Committee of Province, City...

Chairperson

(Signature, stamp)

Place of Receipt:

-..............

-................

- File...