Circular No. 74/2015/TT-BTNMT on exploration, classification of reserves, and mineral resources of apatite

CIRCULAR

Provisions on exploration, classification of reserves and mineral resources of apatite

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BASED ON THE MINERAL LAW NO. 60/2010/QH12 dated November 17 in 2010;

Article 1. Persons Paying FeescouncillORS LIST OF ADMINISTRATIVE PROCEDURESNo. DECREE NO. 15/2012/NĐ-CP dated March 9the Minister of Transport issues this Circular amending and supplementing some articles of Circular No. 6/2016/TT-BGTVT dated March 13, 2016 of the Minister of Transport regulating the maximum service charge for using roads in road construction projects for business purposes under the management of the Ministry of Transport: 2012012 OF THE GOVERNMENT providing detailed guidance on implementation of certain provisions of the Mineral Law;

WHEREAS BASED ON DECREE NUMBER 21/2013/NĐ-CP day 04 MARCH 20123 of The Government promulgates the functions, tasks, powers, and organizational structure of the Ministry of Natural Resources and Environment;

AT THE PROPOSAL OF THE HEAD OF THE NATIONAL MINERAL RESERVE ASSESSMENT BOARD, THE DIRECTOR OF VIETNAM GEOLOGICAL AND MINERAL RESOURCES AGENCY, THE DIRECTOR OF THE LEGAL AFFAIRS DEPARTMENT;

THE MINISTRY OF NATURAL RESOURCES AND ENVIRONMENT ISSUES THIS CIRCULAR PROVIDING FOR EXPLORATION, CLASSIFICATION OF RESERVES AND MINERAL RESOURCES OF APATITEi3. Experts, leading scientists, chief engineers participating in national defense and security industrial activities at key national defense industrial facilities and key security industrial facilities.

PART I

GENERAL PROVISIONS

Article 1.perioda) Clause 1 Article 15 regarding accountability;

Article 1. This Circular provides for exploration, classification of reserves and mineral resources of apatite.

Article 2. This Circular applies to the work of assessing apatite minerals in basic geological and mineral surveys.

Article Thông tư này áp dụng đối với tổ chức, cá nhân có liên quan đến hoạt động kinh doanh đối tượng thủy sản nuôi chủ lực trên lãnh thổ Việt Nam.

This Circular applies to state management agencies for minerals; organizations engaged in mineral exploration; organizations and individuals engaged in mineral exploration and exploitation and other organizations and individuals related to mineral activities.

Chapter II

CLASSIFICATION OF RESERVES AND RESOURCES

Article 3. Classification of reserves and resources

Clause 1. Mineral resources of apatite ore are classified into two groups:

a) Determined resources;

b) Predicted resources.

Clause 2. The determined resource group is divided into two types: reserves and resources

a) The reserve type is divided into two levels, including level 121 and level 122 reserves;

b) The resource type is divided into three levels, including level 221, level 222 and level 333 resources.

Clause 3. The predicted resource group is divided into two levels, including level 334a and level 334b resources.

Clause 4. The classification table of reserves and resources of apatite minerals is specified in Appendix 1 attached hereto.

Article 4. Requirements for level 121 reserves

Clause 1. Geological assessment level

a) The geological structure of the mine is identified; characteristics of shape, size, position, variation rules of shape, internal structure of the ore body, presence of vein rocks, fractures causing displacement or destruction of the ore body are determined; ensuring only one ore body delineation plan;

b) Accurate classification of natural and industrial ores with distinct characteristics in terms of mineral composition, chemical composition, structure, architecture, mechanical and technological properties of the ore; boundaries between different types of ores are accurately defined;

c) Ore quality is confirmed with certainty, clearly defining the material composition, mechanical properties of apatite ore; thoroughly researching the characteristics of harmful and accompanying beneficial component contents and forms; technological properties of the ore are evaluated in detail to determine reasonable mining and processing plans;

d) Hydrogeological conditions, engineering geological conditions, mining conditions and other relevant natural factors are evaluated in detail to provide sufficient reliable data for establishing a mining investment project;

đ) Reliability of reserves ensures at least 80%.

Clause 2. Delineation of reserve boundaries

The boundary of level 121 reserves is delineated within the control range of exploration works and mining works (if any). Depending on the complexity of the geological structure and the stability of the thickness and grade of the ore body, the distance between exploration works may vary but must not exceed the maximum value of the grid spacing for level 121 reserves as specified in Appendix 2 attached hereto.

Clause 3. Level of technical, technological and economic feasibility assessment

a) Reasonable mining and processing technologies have been selected based on technology research reports or construction project reports for mining facilities;

b) The level of reserves is economically viable based on research of construction project reports for mining facilities, or meets the reserve calculation criteria detailed in the exploration results report.

Articleonu 5. Requirements for level 122 reserves

Clause 1. Geological assessment level

a) Characteristics of the geological structure of the mine, basic characteristics of the shape, size, position of the ore body; characteristics of thickness and grade variation of the ore body, presence of vein rocks, fractures causing displacement or destruction of the ore body are identified;

b) The reliability of natural ore types and industrial ore grades with distinct characteristics in terms of mineral composition, chemical composition, structure, architecture, mechanical and technological properties of the ore is assessed;

c) Ore quality is assessed in detail, determining the material composition, mechanical properties of each type of apatite ore. Evaluating the characteristics of accompanying beneficial component contents and forms; technological properties of the ore are assessed at a reliable level, allowing for the determination of a reasonable ore processing technology flow;

d) Basic characteristics of hydrogeological conditions, engineering geological conditions, and technical mining conditions are determined as the basis for establishing a mining investment project;

đ) Reliability of reserves ensures at least 50%.

Clause 2. Delineation of reserve boundaries

a) The boundary of level 122 reserves is delineated within the control range of exploration works and mining works (if any). Depending on the complexity of the geological structure of the ore body, the stability of its thickness and grade, the distance between control exploration works may vary but must not exceed the maximum value of the grid spacing for level 122 reserves as specified in Appendix 2 attached hereto;

b) For ore bodies with a structure that is not overly complex, relatively stable thickness and quality, the boundary of level 122 reserves may be extrapolated within limits based on geological and geophysical data, but must not exceed the prescribed grid spacing for this level.

Clause 3. Level of technical, technological and economic feasibility assessment is carried out according to the provisions of Clause 3, Article 4 of this Circular.

Article Article 6. Requirements for level 221 resources

Clause 1. Geological assessment level and delineation of resource boundaries at level 221 are carried out according to the provisions of Clause 1 and Clause 2 of Article 4 of this Circular.

Clause 2. Level of technical, technological and economic feasibility assessment

A reasonable technical and technological method for mining and processing mineral resources has been selected based on the results of the technology sample test report, but the investment construction project report for the mine determines that mining and processing mineral resources from this resource source is not economically effective or does not meet the calculated reserve index according to the appendix explaining the calculated reserve index in the exploration report and/or meets the calculated reserve index but is located in a prohibited or temporarily prohibited area for mineral activities.

Article 7. Requirements for Class 222 Resources

1. The level of geological evaluation and delineation of the boundaries of Class 222 resources shall be carried out in accordance with Clause 1 and 2 of Article 5 of this Circular.

2. The level of technical, technological feasibility assessment and economic efficiency shall be carried out in accordance with Clause 2 of Article 6 of this Circular.

Article 8. Requirements for Classê333 Resources

Clause 1. Geological assessment level

a) General characteristics of the ore deposit's geological structure, shape, position, and distribution of apatite ore bodies in the deposit have been determined; thickness and grade of the ore bodies have been determined based on engineering encounter data.

b) Quality of apatite ore is determined based on sampling results from natural exposures, cleaned trenches, shafts, drilling, or extrapolation based on detailed geological evaluation data from adjacent areas.

c) Natural factors determining mining conditions are not required to be evaluated in detail at this stage, mainly preliminary understanding and analogy with adjacent areas that have been more thoroughly evaluated.

2. Estimated Resource Boundaries

The estimated resource boundaries for Class 333 are determined based on individual exploration works meeting the calculated reserve criteria and are allowed limited extrapolation according to the controlling geological structure of the ore and/or not exceeding twice the exploration grid of Class 122 reserves. For small isolated ore bodies where reserves cannot be calculated, the Class 333 resource boundary must have at least two control works.

3. Level of Technical, Technological, and Economic Assessment

It has not yet been determined whether mining and processing mineral resources from this resource source is economically viable or potentially economically viable at the time of assessment.

Chapter III

CLASSIFICATION OF MINES AND REQUIREMENTS FOR EXPLORATION WORKS

ArticleonArticle 9. Classification of Exploration Mines

1. Basis for Classification of Exploration Mines

a) Based on the shape, size, position of the ore body, and the complexity of the mine's geological structure;

b) Based on quantitative indicators assessing the variation in thickness and grade of the main components of the ore body and the geological mining conditions;

c) Based on specific arguments and evaluations of the main ore bodies, which account for no less than 70% of the mine's reserves. The classification of exploration mines is proposed in the mineral exploration plan and confirmed in the exploration results report.

2. Classification of Exploration Mines into Groups

a) Simple Mine Group (I);

b) Relatively Complex Mine Group (II);

c) Complex Mine Group (III);

d) Very Complex Mine Group (IV).

3. Conditions for Classification of Exploration Mines

a) Simple Mine Group (I) includes mines or parts of mines with simple geological structures and medium to large-sized ore bodies; ore bodies are tabular or large lens-shaped lying horizontally or gently inclined, with a perimeter modulus (μ) not greater than 1.4; ore content factor from 0.8 to 1.0; thickness of the ore body varies stably, thickness variation coefficient along the work not exceeding 40%; phosphorus (P) content in the ore body for calculated reserves is evenly distributed, variation coefficient of P content according to single samples not exceeding 40%;₂O₅ b) Relatively Complex Mine Group (II) includes mines or parts of mines with relatively complex geological structures and medium to large-sized ore bodies; ore bodies have relatively simple to complex shapes, with a perimeter modulus (μ) from 1.4 to 1.6; ore content factor from 0.6 to 0.8; thickness of the ore body varies unstably, thickness variation coefficient along the work from 40% to 100%; phosphorus (P) content in the ore body for calculated reserves is relatively evenly distributed, variation coefficient of P content according to single samples from over 40% to 100%;

c) Complex Mine Group (III) includes mines or parts of mines with complex geological structures and small to medium-sized ore bodies; ore bodies have complex shapes, with a perimeter modulus (μ) from 1.6 to 1.8; ore content factor from 0.4 to 0.6; thickness of the ore body varies very unstably, thickness variation coefficient along the work from 100% to 150%; phosphorus (P) content in the ore body for calculated reserves is very unevenly distributed, variation coefficient of P content according to single samples from over 100% to 150%;₂O₅ d) Very Complex Mine Group (IV) includes areas belonging to dispersed or small-scale mineral deposits or parts of mines with extremely complex geological structures and small to very small-sized ore bodies, commonly vein-like, lens-shaped, or branching tabular; ore bodies have extremely complex shapes, with a perimeter modulus (μ) greater than 1.8; ore content factor less than 0.4; thickness of the ore body varies particularly unstably, thickness variation coefficient along the work over 150%; phosphorus (P) content in the ore body for calculated reserves is particularly unevenly distributed, variation coefficient of P content according to single samples over 150%.

c) Group III complex mines include mines or parts of mines with complicated geological structures, containing small to medium-sized ore bodies; the shapes of the ore bodies are complex, with contour modulus (μ) ranging from 1.6 to 1.8; the ore grade factor ranges from 0.4 to 0.6; the thickness of the ore body is very unstable, with a thickness variation coefficient according to the project from 100% to 150%; the P content in the ore body reserves is distributed very unevenly, with a content variation coefficient according to the sample from over 100% to 150%;₂O₅ in the ore body, the distribution of reserves is very uneven, with the sample variation coefficient ranging from over 100% to 150%;

d) Group IV extremely complex mines include areas with scattered mineral deposits, small and isolated, or parts of mines with extremely complicated geological structures, containing small to very small ore bodies, commonly in vein, lens, or branching seam forms; the shapes of the ore bodies are extremely complex, with contour modulus (μ) greater than 1.8; the ore grade factor is less than 0.4; the thickness of the ore body is particularly unstable, with a thickness variation coefficient according to the project over 150%; the P content in the ore body reserves is distributed particularly unevenly, with a content variation coefficient according to the sample over 150%;₂O₅ in the ore body, the distribution of reserves is particularly uneven, with the sample variation coefficient exceeding 150%.

Article 10. General requirements for exploration work

1. Conducted according to the principle from unknown to known, sequential exploration from surface to deeper depths, exploration network from sparse to dense, geological mapping from small scale to large scale maps.

2. Collect all information, data, geological, hydrogeological, engineering geological, environmental geological materials; mining exploitation conditions serving the evaluation, investment project establishment for mineral extraction and mine design.

3. The exploration sequence is established based on compatibility with the complexity of geological structure, ore reserve scale, and economic value of the mine.

4. Carry out exploration work throughout the entire area and depth where the ore body exists within the selected exploration project boundaries.

Article 11. Requirements for topographic basis and geodetic work

1. Exploration areas must conduct topographic mapping at corresponding scales as required by exploration work. Topographic maps must be established according to current regulations on geodetic work in mineral exploration. The scale of topographic maps ranges from 1/5,000 to 1/1,000, depending on geological structure, ore body size, and terrain complexity.

2. Exploration works, mining works (if any), and corner points of the exploration area must determine coordinates and elevations and must relate to the national coordinate network according to current regulations on geodetic and geological work.

Article 12. Requirements for geological mapping

1. Geological mapping during apatite mineral exploration is carried out at scales ranging from 1/5,000 to 1/1,000, depending on the size of the ore bodies and the complexity of the mine's geological structure.

2. Geological maps must clearly depict the characteristics of the mine's geological structure, distribution features of sedimentary, metamorphic, igneous formations, folds, destructive tectonic fractures, ore bodies within the exploration area; provide a basis for evaluating the distribution characteristics, formation conditions of ores, relationships between ore bodies and surrounding rocks, and main geological structures.

Article 13. Requirements for selection and layout of exploration works

1. Selection of exploration works

a) In apatite exploration, excavation works (trenches, shafts, adits) and drilling can be chosen. Selected exploration works must be suitable for the lying position, depth distribution, geological structure, shape, thickness of each ore body, and the characteristics of overburden layers;

b) At exploration works, detailed samples must be taken to determine ore quality, distribution patterns of different types of ores, depth of weathering, structural characteristics of ore body walls and pillars;

c) For mines with very complex geological structures, to clarify the lying position, shape, internal structure of ore bodies, it is necessary to use exploration works such as adits, shafts, limiting the use of drilling works;

d) Drilling works must recover the highest core intact. The sampling rate of drill cores should not be less than 70% through rock and 85% when drilling through ore, encouraging the use of combined borehole geophysical methods;

đ) Vertical drill holes over 100 meters deep and inclined drill holes must check the azimuth and deviation of the drill hole every 10 to 20 meters;

e) Ore bodies that are steeply dipping or vertically dipping require the application of inclined or horizontal drilling methods;

g) Exploration works must cut through the entire thickness of the ore body.

2. Layout of exploration works and selection of exploration network density

a) The layout of exploration works must ensure comprehensive assessment of geological structure characteristics, shape, size, lying position, stability of ore body thickness;

b) The orientation network of exploration works specified in Appendix 2 attached to this Circular;

c) Exploration works, mining works, natural and artificial exposures within the exploration area must be described, geologically mapped, and original documentation promptly, fully, and accurately according to current regulations on collecting original documentation in mineral exploration and must be reflected on actual field documentation maps.

Article 14. Requirements for sample collection

1. Detailed and systematic sampling must be conducted at exploration works encountering ore to evaluate the quality of apatite ore and accompanying valuable components. The location of sampling and characteristics of samples must be detailed in original documentation. Types and quantities of samples collected must be appropriate for exploration purposes and must be reflected in the exploration project proposal.

2. Basic sampling must be conducted at works encountering ore. Depending on the variation of ore bodies, continuous sampling must be taken throughout the entire thickness of the ore body and some samples must be taken from pillar and wall rocks, with intervals equal to the thickness of intercalated rock layers within the ore body. At excavation works and natural exposures encountering ore, sampling is done using trench methods, depending on the uniformity of the ore, the cross-section of the trench sample varies within a rectangular range and width from 5 cm to 10 cm and depth from 3 cm to 5 cm. The length of basic samples is determined by the structure, thickness, quality, and homogeneity of the ore body; for thin ore bodies with non-uniform structure and composition, the length of a single sample ranges from 0.5m to 1.0m, up to 2.0m; for thick ore bodies with relatively homogeneous structure and composition, the length of a single sample ranges from 1m to 2m, up to 3m; At drilling works, sampling is done by splitting the core along the axis, taking half and storing the other half in a sample tray.

3. Comprehensive sampling must be taken for each ore body and natural ore type by grouping basic samples collected from exploration works distributed evenly across the entire mine.

4. Technological test samples must be representative of chemical composition, mineralogy, physical-mechanical properties, particle size, and other properties consistent with the average composition of each ore type and main ore body in the mine. Sample mass is unified with the testing agency.

5. Large bulk samples are taken with a volume from 3 to 5 samples for each natural ore type. Along with each large bulk sample, 3 to 4 small bulk samples are simultaneously taken for analysis and comparison. The volume of each large bulk sample ranges from 0.5m³ to 1m³The expansion coefficient must be determined simultaneously with large sample weight specimens. For dense ores, ore weight is primarily determined using small sample weight specimens and verified using large sample weight specimens. For loose, fractured, and porous ores, ore weight is determined using large sample weight specimens; moisture content of the ore must also be determined alongside its weight.

Article 15. Requirements for Sample Processing

1. All samples must be crushed and ground to particle sizes smaller than 0.1mm, subsequent processing and reduction shall be carried out according to the processing scheme for each mine.

2. The quality of sample processing must be systematically checked at all stages, compliance with the sample processing scheme must be verified. All basic analytical samples before analysis must be processed to a particle size of 0.074mm.

Article 16. Requirements for Sample Analysis

1. The results of sample analysis must determine the content and form of existence of the main beneficial component, harmful components, and accompanying beneficial components.

a) The content of the main beneficial component (P₂O₅) in apatite ore must be determined through chemical analysis or other methods. The chemical analysis process follows current regulations; basic chemical analysis samples analyze the P₂O₅component, additional analysis criteria may be added depending on the presence of accompanying beneficial components. Basic chemical analysis is conducted on 100% of the samples taken from the exploration site;

b) Accompanying beneficial components, harmful components, and other components are determined based on group chemical samples, at least 10% of the basic samples;

Group chemical samples, in addition to the components analyzed in the basic samples, select supplementary components: SiO₂, Al₂O₃, FeO, Fe₂O₃, CaO, MgO, MnO, K₂O, Na₂O, CKT, S, MKN, Cl, F, S, Tr₂O₃, Y₂O₃, U₃O₈, ThO₂... appropriate to each type of ore;

c) Mineral composition, structural characteristics, physical properties, and radioactive properties of the ore must be studied using petrographic, mineralogical, physical, chemical, or other analytical methods;

d) Technological sample research work

Technological samples must be studied at laboratory scale, expanded laboratory scale, or semi-industrial scale. For new types of ores, difficult-to-treat ores, or ores without industrial production experience, separate research and evaluation are required;

The results of technological sample research must evaluate the material composition of the ore, determine the key economic-technical parameters of the beneficiation stages, propose a reasonable beneficiation technology scheme to recover concentrate and evaluate the recovery potential of accompanying beneficial components (if present);

ArticleArticle 17. Requirements for Sample Analysis Verification

1. Sample analysis verification must be carried out regularly and systematically.

2. Quality control of sample analysis results is implemented according to Circular No. 62/2014/TT-BTNMT dated December 9, 2014, issued by the Minister of Natural Resources and Environment regarding National Technical Regulations on Quality Control of Geological and Mineral Sample Analysis Results.

Article 18. Requirements for Hydrogeological and Engineering Geological Evaluation

1. Requirements for hydrogeological evaluation

a) Meteorological and hydrological data of the exploration area must be collected for at least the last five years;

b) Surface water sources and major aquifers within the exploration area must be studied; it is necessary to assess the potential flooding layers that could inundate the mine, especially in areas most prone to flooding, to address drainage and mine drying issues;

c) For aquifers, thickness, lithological composition, and water supply conditions must be determined; relationships between aquifers, surface water, groundwater, and related parameters must be established;

d) Chemical and microbiological components of water must be studied, the ability of water to corrode concrete and metals, the content of beneficial and harmful components in water must be evaluated; the impact of mine dewatering on underground water usage facilities in the region, as well as the suitability of water for domestic use must be assessed. Recommendations for water supply and drainage solutions and the extent of the impact of mine drying on the surrounding environment must be proposed.

2. Requirements for engineering geological evaluation

a) Engineering geological units existing in the exploration area must be identified; the mechanical and physical properties of the ore, surrounding rock, and overburden under natural and saturated conditions must be determined; the engineering geological characteristics of soil and rock strata, their anisotropic properties, rock composition, fracturing, destruction, karst, and weathering phenomena must be clarified;

b) The stability of mine structures must be evaluated, and basic parameters of the open-pit and underground mining workings must be calculated.

3. All hydrogeological, engineering geological conditions, and other natural factors must be evaluated to meet the requirements for establishing investment projects for mineral exploitation and mine design. In cases where hydrogeological and engineering geological conditions are complex, specialized investigation evaluation projects are required.

Article 19. Requirements for Environmental Impact Assessment

1. The exploration process must collect geological environmental data to forecast and assess the main factors affecting the environment.

2. Assess geological hazards and negative impacts on the environment caused by apatite ore exploration activities, and propose preventive and mitigation measures. The content and level of environmental impact assessment must be included in the exploration project proposal.

Article 20. Requirements for Technical Conditions Assessment for Mine Exploitation

1. Preliminarily assess the boundaries of the mining area, the slope angle of the seam face, the slope angle of the pit edge, stripping ratio, volume of overburden; preliminarily assess the rock pressure on the walls and pillars of the ore bodies.

2. Assess areas without industrial apatite ore as the basis for establishing investment projects for mineral exploitation and designing mine construction works.

Article 1u 21. Requirements regarding Reserves and Resourcesầ1. Calculating reserves and resources of apatite ore must be based on detailed criteria for calculating reserves explained in the report on the results of mineral exploration for each deposit.

2. Methods for calculating reserves and resources of apatite ore must be selected appropriately according to the structural characteristics of the ore body in each deposit and the characteristics of the exploration works network that has been implemented. It is encouraged to apply specialized software for calculating reserves.

3. Reserves and resources of apatite ore refer to the current reserves underground, excluding losses during extraction and processing, and are expressed in units of thousands of tons for ore and P.

4. Reserves and resources of each apatite ore body are presented on reserve calculation maps or sections at scales equal to or larger than geological map scales, depending on the scale and characteristics of the ore body. Reserve calculation results must be presented according to each type of ore in each ore body, by reserve grade and resource grade.₂O₅.

5. Reserves and resources of apatite ore are calculated and presented in the report on the results of mineral exploration. Documents for calculating reserves of overburden used as construction materials and other accompanying minerals (if any) are presented as appendices to the report.

Article 22. Requirements for Highest Reserve Grade and Proportions of Reserve Grades

3. Amend Clause 3 Article 2 as follows:i1. For Group I and II mines, the highest reserve grade must be explored up to grade 121; for Group III and IV mines, the highest reserve grade to be explored is grade 122.

2. The proportions of grades 121 and 122 are determined by the investor based on the geological characteristics of the mine, financial capacity, technical conditions for exploitation, expected production capacity, but must ensure that the proportion of the highest grade reserve to the total reserve of the mine is not less than 10%, and must be reflected in the exploration project proposal.

Article 23. Content and Presentation Form of the Report on Exploration Results

Article The content and presentation form of the report on exploration results shall be carried out in accordance with Circular No. 16/2012/TT-BTNMT dated November 29, 2012, issued by the Minister of Natural Resources and Environment, stipulating the exploration project proposal, closure of mineral mines, and sample reports on mineral activity results, sample documents in the permit application dossier for mineral activities, approval dossier for mineral reserves, and closure dossier for mineral mines.Article 24. Effectiveness

1. In case the provisions referred to in this Circular are amended or supplemented, they shall be applied according to the amended or supplemented legal normative documents.

Chapter IV

IMPLEMENTATION

2. The National Mineral Reserve Evaluation Council Office, Vietnam General Department of Geology and Minerals shall be responsible for guiding, inspecting, and implementing the provisions of this Circular.ệnto effecitselffor implementation

1. This Circular takes effect from February 15, 2016.

3. During implementation, if there are difficulties or obstacles, organizations and individuals shall promptly reflect them to the Ministry of Natural Resources and Environment for consideration and resolution./.

Article 25. Responsibilities for Implementation

1. The Office of the National Mineral Reserve Evaluation Council, Vietnam General Department of Geology and Minerals shall be responsible for guiding, inspecting, and implementing the provisions of this Circular.

2. In case difficulties arise during implementation, organizations and individuals shall promptly report to the Ministry of Natural Resources and Environment for consideration and resolution./.