Circular No. 98/2025/TT-BTC stipulates the model bidding dossier for selecting investors to implement public-private partnership (PPP) projects and business investment projects; providing and publishing information on PPP projects and investor selection bidding on the National Bidding Network System.

 CIRCULAR

REGULATING THE MODEL OF BID DOCUMENTS FOR SELECTING INVESTORS TO IMPLEMENT PUBLIC-PRIVATE PARTNERSHIP PROJECTS AND BUSINESS INVESTMENT PROJECTS; PROVIDING AND DISSEMINATING INFORMATION ON PUBLIC-PRIVATE PARTNERSHIP INVESTMENTS AND BIDDING TO SELECT INVESTORS ON THE NATIONAL E-GOVERNMENT PROCUREMENT SYSTEM

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On the basis of Bidding Law No. 22/2023/QH15 AMENDED AND COMPLEMENTED BY LAW NUMBER 57/2024/QH15, LAW NUMBER 90/2025/QH15;

On the basis of THE LAW ON PUBLIC-PRIVATE PARTNERSHIP NUMBER 64/2020/QH14 AMENDED AND COMPLEMENTED BY LAW NUMBER 03/2022/QH15, Law number 57/2024/QH15, LAW NUMBER 90/2025/QH15;

Decree No. 115/2024/NĐ-CP September 16, 2024, of the Government detailing certain provisions and implementing measures of THE BIDDING LAW regarding the selection of investors to implement investment projects using land amended and supplemented by Decree Number 225/2025/NĐ-CP August 15, 2025, of the Government;

Decree No. 23/2024/NĐ-CP February 27, 2024, of the Government detailing certain provisions and implementing measures of THE BIDDING LAW regarding the selection of investors to implement projects that must be organized through bidding as prescribed by laws governing sectors and fields, amended and supplemented by Decree Number 225/2025/NĐ-CP August 15, 2025, of the Government;

Decree No. 180/2025/NĐ-CP July 1, 2025, of the Government on mechanisms and policies for public-private partnership in the field of science, technology, innovation, and digital transformation;

Decree No. 243/2025/NĐ-CP September 11, 2025, of the Government detailing certain provisions of THE LAW ON PUBLIC-PRIVATE PARTNERSHIP;

Decree No. 257/2025/NĐ-CP October 8, 2025, of the Government detailing the implementation of projects applying the Build-Transfer contract type;

Decree No. Decision No. dated February 24, 2025 of the Government stipulating the functions, tasks, powers, and organizational structure of the Ministry of Finance, amended and supplemented by Decree No. 166/2025/NĐ-CP June 30, 2025, of the Government;

At the proposal of the Director of the National Public Procurement Management Agency;

The Minister of Finance issues this Circular regulating the model of bid documents for selecting investors to implement public-private partnership projects and business investment projects; providing and disseminating information on public-private partnership investments and bidding to select investors on the National E-Government Procurement System.

PART I

GENERAL PROVISIONS

Article 1. Scope of Regulation

This Circular stipulates:

1. Model of bid documents for selecting investors to implement public-private partnership projects (PPP) and business investment projects.

2. Providing and disseminating information on public-private partnership investments and bidding to select investors on the National E-Government Procurement System.

Article 2. Applicability

1. Organizations and individuals related to the selection of investors within the scope regulated by Article 1 of this Circular.

2. Organizations and individuals engaged in investor selection activities not covered by the Bidding Law may choose to apply the provisions of this Circular. In case of choosing to apply, the procedures for providing and disseminating information shall be carried out according toGuidelines for Useon the National E-Government Procurement System.

Article 3. Explanation of Terms

1. The National E-Government Procurement System(hereinafter referred to as the System),The national information system onbusiness registrationDigital certificate used on the System, Guidelines, for useBusiness account, is defined according to the provisions of Clauses 1, 2, 6, 7, and 10 of Article 3 of Circular No. 79/2025/TT-BTC dated August 4, 2025, issued by the Minister of Finance guiding the provision and dissemination of bidding information and bidding document models on the National E-Government Procurement System (hereinafter referred to as Circular No. 79/2025/TT-BTC).Electronic document

2. Electronic documentis a document or information successfully sent, received, and stored on the System, including:a) Investment policy decision, project approval decision for PPP projects;

b) Decision approving the investment policy for business investment projects (for projects requiring investment policy approval under the investment law), project information approval document (for projects not requiring investment policy approval);

c) Progress tracking table of activities for selecting investors for business investment projects; shortlist (for business investment projects applying limited bidding);

d) Notice of interest invitation, tender notice;

e) Invitation to express interest document, tender document;

f) Joint venture agreement;

g) Bid opening record;

h) Results of interest invitation; list of technically qualified investors; selection results;

i) Clarification and amendment content of the invitation to express interest document, project implementation registration document, tender document, bid document; content of recommendations on the selection results;

j) Other electronic documents exchanged on the System.

Invalid information

3. is information posted on the System by entities specified in Article 2 of this Circular that does not comply with the laws on public-private partnerships, bidding laws, sectoral management laws, and other relevant laws. Organization participating in the System

4. is agencies and organizations registered to participate in the System with one or more roles as follows: a) Authority agency, contract signing agency;b) Tenderer, inviter of interest;

c) Investor;

d) Agencies, organizations, units subordinate to ministries, ministerial-level agencies, central agencies, other agencies, provincial People's Committees; village People's Committees.

Account participating in the System

is an account issued by the National Online Procurement Center for organizations participating in the System to perform one or more roles as stipulated in Clause 4 of this Article.

5. Account participating in the Systemis an account issued by the National Online Bidding Center for Organizations participating in the System to perform one or more roles specified in Clause 4 of this Article.

Article 4. Preparation of interest surveys, tender documents, and request documents for PPP projects

1. The tenderer, or the specialized team shall organize the preparation of interest surveys, tender documents, and request documents for PPP projects in accordance with the provisions of the Law on Public-Private Partnership (hereinafter referred to as the PPP Law), Decree No. 243/2025/ND-CP dated September 11, 2025 of the Government detailing certain provisions of the PPP Law (hereinafter referred to as Decree No. 243/2025/ND-CP), Decree No. 257/2025/ND-CP dated October 8, 2025 detailing the implementation of projects applying Build-Transfer (BT) contracts (hereinafter referred to as Decree No. 257/2025/ND-CP), guidelines on investment activities under the PPP method issued by ministries and ministerial-level agencies (if any), and relevant laws as follows:

a) The interest survey shall be conducted according to the model prescribed in Appendix I attached hereto;

b) Guidelines on the content of exchanges regarding tender documents for projects applying competitive dialogue procedures shall be carried out according to the model prescribed in Appendix II attached hereto;

c) Tender documents shall be prepared according to the model prescribed in Appendix III attached hereto;

d) Request documents for projects applying the standard investor selection process shall be prepared according to the model prescribed in Appendix IV attached hereto.

2. For projects applying the simplified investor selection process:

a) During the review of the project proposal submitted by the investor, the project evaluation unit shall assess the investor's ability to arrange funds and the suitability of the draft contract content in accordance with Point d Clause 7 Article 27 of Decree No. 243/2025/ND-CP as follows:

The investor's ability to arrange funds shall be assessed based on the provisions on capacity assessment in Section 2 Chapter II Part 1 of Appendix IV attached hereto.

The suitability of the draft contract content shall be assessed based on the draft contract content prescribed in Part 3 of Appendix III attached hereto, Appendix III attached to Decree No. 243/2025/ND-CP, and Articles 14 and 16 of Decree No. 257/2025/ND-CP.

b) After the decision approving the project and the result of the investor designation, the tenderer shall establish requirements for capacity and financial-commercial matters in accordance with Point a Clause 3 Article 56 of Decree No. 243/2025/ND-CP, Point a Clause 3 Article 10 of Decree No. 257/2025/ND-CP as the basis for organizing negotiations and completing the contract as follows:

The capacity requirement shall be established based on updating information about the legal status, equity funding arrangement capability, and debt financing capability of the investor as stipulated in the project approval decision.

The financial-commercial requirement shall be established based on the provisions on financial-commercial assessment prescribed in Section 4 Chapter II Part 1 of Appendix IV attached hereto.

3. For projects applying the special investor selection method, the financial capacity requirements and project implementation conditions of the investor shall be established based on the provisions of the request document model in Appendix IV attached hereto.

4. In Appendices I, II, III, and IV attached hereto, italicized content serves as guidance and illustration and shall be concretized in tender documents and request documents based on the scale, nature, field, and specific conditions (if any) of each project.

Article 5. Preparation of notices inviting interest, tender invitation documents, request for proposal documents for business investment projects

1. The party inviting interest, the tenderer, and the specialized team shall organize the preparation of notices inviting interest, tender invitation documents, and request for proposal documents in accordance with the provisions of the Law on Bidding, Decree No. 23/2024/NĐ-CP dated February 27, 2024 of the Government detailing certain provisions and implementing measures of the Law on Bidding regarding the selection of investors to implement projects that must be organized through bidding according to the laws governing industries and sectors (hereinafter referred to as Decree No. 23/2024/NĐ-CP), Decree No. 115/2024/NĐ-CP dated September 16, 2024 of the Government detailing certain provisions and implementing measures of the Law on Bidding regarding the selection of investors to implement investment projects using land (hereinafter referred to as Decree No. 115/2024/NĐ-CP), guidelines issued by relevant ministries and sectors (if any), and related laws as follows:

a) Notices inviting interest and tender invitation documents for projects applying open bidding and selective bidding in a single-stage single-envelope process shall be prepared according to the model specified in Appendix V attached hereto;

b) Tender invitation documents for projects applying open bidding in a single-stage single-envelope process shall be prepared according to the model specified in Appendix VI attached hereto;

c) Tender invitation documents for projects applying open bidding in a two-stage double-envelope process shall be prepared according to the model specified in Appendix VII attached hereto;

d) Request for proposal documents for projects applying the standard investor designation process as stipulated in Point a, Clause 1, Article 44d of Decree No. 115/2024/NĐ-CP shall be prepared according to the model specified in Appendix VIII attached hereto;

đ) For power investment projects, the tender documents shall be prepared in accordance with the guidance of the Ministry of Industry and Trade;

2. For projects applying the simplified investor designation process as stipulated in Point b, Clause 1, Article 44d of Decree No. 115/2024/NĐ-CP, requirements concerning financial capacity, land use efficiency, and industry and sector development effectiveness shall be established based on the provisions of the request for proposal model at Appendix VIII attached hereto;

3. For projects applying the special investor selection method, requirements concerning financial capacity and project implementation conditions of the investor shall be established based on the provisions of the request for proposal model at Appendix VIII attached hereto;

4. For projects applying the two-stage single-envelope process, tender invitation documents shall be developed based on the provisions of the tender invitation document model at Appendix VI attached hereto;

5. In Appendices V, VI, VII, and VIII attached hereto, italicized content serves as guidance and illustration and shall be concretized in tender invitation documents, notices inviting interest, and request for proposal documents based on the scale, nature, sector, and specific conditions (if any) of each project;

Chapter II

PROVISION AND UPLOAD OF INFORMATION ON PPP INVESTMENT, SELECTION OF INVESTORS THROUGH BIDDING ON THE SYSTEM

Article 6. Principles for Provision and Upload of Information on the System

1. Provisions on file format; technical handling in case of system failure beyond control; management of accounts and use of digital certificates; sending and receiving electronic documents on the system; infrastructure conditions for information technology implementation shall comply with the corresponding provisions of Articles 5, 6, 7, 8, and 9 of Circular No. 79/2025/TT-BTC;

2. The organization operating the system shall fulfill responsibilities as prescribed in Article 52 of the Law on Bidding, Article 25 of Circular No. 79/2025/TT-BTC, and corresponding responsibilities for providing and uploading information on the system as prescribed in this Circular.

Article 7. Information on projects and survey of investor interest

1. For PPP projects:

The competent authority shall post or instruct subordinate agencies, organizations, units to post project information on the System along with the investment decision, adjusted investment decision (if any), project approval decision, adjusted project approval decision (if any) before organizing the selection of investors in accordance with point a, Clause 2, Article 3 of Decree No. 243/2025/ND-CP.

b) The competent authority shall post or instruct subordinate agencies, organizations, units to post a notice to survey investor interest on the System. The survey of investor interest shall be conducted in accordance with Article 20 of Decree No. 243/2025/ND-CP.

2. For business investment projects:

a) In cases where the project falls under the category of approved investment orientation decisions:

Ministries, ministerial-level agencies, provincial People's Committees, Economic Zone Management Boards shall instruct subordinate agencies, organizations, units or village-level People's Committees to post the investment orientation approval decision on the System before organizing bidding to select investors in accordance with Clause 2, Article 10 of Decree No. 115/2024/ND-CP, and Article 9 of Decree No. 23/2024/ND-CP.

b) In cases where the project does not fall under the category of approved investment orientation decisions:

Ministries, ministerial-level agencies, provincial People's Committees, Economic Zone Management Boards shall instruct subordinate agencies, organizations, units or village-level People's Committees to post business investment project information on the System before organizing bidding to select investors in accordance with point c, Clause 1, Article 11 of Decree No. 115/2024/ND-CP, and point c, Clause 1, Article 10 of Decree No. 23/2024/ND-CP.

Article 8. Progress Tracking Table for Investor Selection Activities for Business Investment Projects

Ministries, ministerial-level agencies, provincial People's Committees, Economic Zone Management Boards shall instruct subordinate agencies, organizations, units or village-level People's Committees to post the progress tracking table for investor selection activities on the System before organizing bidding to select investors in accordance with Clause 5, Article 12 of Decree No. 115/2024/ND-CP, and Clause 5, Article 11 of Decree No. 23/2024/ND-CP.

Article 9. Issuance, Amendment, Clarification of Tender Documents; Extension of Time for Submission of Project Implementation Registration Applications for Business Investment Projects

1. Issuance:

a) The tender documents shall be issued free of charge simultaneously with the tender invitation announcement on the System. During the posting of the tender invitation announcement, the tender inviter shall attach the approval decision for the tender documents and the approved tender documents;

b) The tender inviter shall not issue paper copies of the tender documents. If the tender inviter issues paper copies to investors, such copies shall have no legal value for establishing or evaluating project implementation registration applications.

2. Amendment:

a) In cases where the tender documents are amended after issuance, the tender inviter shall post on the System the amendment decision along with the amended contents of the tender documents and the amended tender documents;

b) Such amendments must comply with the timeframes stipulated in Clause 3, Article 39 of Decree No. 23/2024/ND-CP, and Clause 3, Article 40 of Decree No. 115/2024/ND-CP.

3. Clarification:

a) In cases where clarification of the tender documents is required, investors shall submit a request for clarification to the tender inviter on the System at least five working days before the deadline for submission of project implementation registration applications;

b) The tender inviter shall post the clarification document of the tender documents on the System at least two working days before the deadline for submission of project implementation registration applications;

c) The content of the clarification of the tender documents shall not contradict the content of the tender documents posted on the System. In cases where clarification of the tender documents leads to the need to amend the tender documents, such amendment shall be carried out in accordance with Clause 2 of this Article.

4. Extension of Time for Submission of Project Implementation Registration Applications:

In cases where an extension of the time for submission of project implementation registration applications is required, the tender inviter shall post an extension notice along with the approval decision for the extension on the System. The extension notice shall include the reasons for the extension and the new closing date.

Article 10. Shortlist for investment projects applying limited tendering procedures

The tenderer shall publicly post the approved shortlist and attach the approval decision on the System in accordance with the Project Implementation Progress Tracking Table.

Article 11. Tendering, issuance, amendment, clarification of tender documents; extension of bid submission deadline for PPP projects

1. Tendering:

a) For projects applying competitive dialogue procedures, the tender invitation shall be sent to investors listed in the shortlist, specifying the time and place for issuing tender documents, bid submission deadline, and opening date;

b) For projects applying open tendering procedures, the tenderer shall post the tender announcement on the System in accordance with point b, Clause 2, Article 3 of Decree No. 243/2025/NĐ-CP;

c) For projects applying international investor selection procedures, the tenderer shall post the tender announcement in both English and Vietnamese on the System in accordance with point b, Clause 2, Article 3 of Decree No. 243/2025/NĐ-CP, and on the website of the Ministry, central agency, other agencies, sector management ministries, or provincial People's Committees (if applicable) or in English-language newspapers published in Vietnam.

2. Issuance of tender documents:

a) For projects applying national competitive dialogue procedures, tender documents shall be issued free of charge to investors listed in the shortlist;

b) For projects applying national open tendering procedures, tender documents shall be issued free of charge and fully available as electronic files on the System;

c) For projects applying international investor selection procedures, tender documents shall be issued on the System. Investors must submit a deposit equivalent to the price of one set of electronic tender documents when submitting their bids in accordance with point c, Clause 2, Article 44 of Decree No. 243/2025/NĐ-CP;

d) For tender documents issued on the System in accordance with points b and c of this clause, the tenderer shall not issue paper copies of the tender documents to investors. In case the tenderer issues paper copies to investors, such copies shall have no legal validity for preparing and evaluating bid documents.

đ) During the posting of the tender announcement, the tenderer shall attach the approval decision for the tender documents and the approved tender documents.

e) If the content of the tender documents posted on the System differs from the content of the approved tender documents, the approved tender documents shall serve as the basis for preparing and evaluating bid documents.

3. Amendment of tender documents:

a) In case of amending tender documents after issuance, the amendment decision along with the amended contents of the tender documents shall be sent to investors listed in the shortlist for projects applying competitive dialogue procedures or posted on the System for projects applying open tendering procedures;

b) The posting of the amendment decision for tender documents shall be carried out at least 10 days for domestic investor selection and 15 days for international investor selection before the bid submission deadline. If the posting period for the amendment document does not meet these requirements, the tenderer must extend the bid submission deadline accordingly.

4. Clarification of tender documents:

a) For projects applying competitive dialogue procedures, investors shall send a request for clarification of tender documents to the tenderer at least five working days (for domestic investor selection) or seven working days (for international investor selection) before the bid submission deadline, in accordance with point a, Clause 4, Article 44 of Decree No. 243/2025/NĐ-CP. The clarification of tender documents shall be conducted by sending clarification letters to investors listed in the shortlist;

b) For projects applying open tendering procedures, investors shall send a request for clarification of tender documents to the tenderer or through the System at least five working days (for domestic investor selection) or seven working days (for international investor selection) before the bid submission deadline, in accordance with point b, Clause 4, Article 44 of Decree No. 243/2025/NĐ-CP. The clarification of tender documents shall be conducted by posting clarification letters on the System at least two working days before the bid submission deadline;

c) If necessary, the tenderer may organize a pre-tender meeting to discuss unclear contents in the tender documents. The discussion content must be recorded in a minutes book and clarified in writing; the clarification letter must be sent to investors listed in the shortlist for projects specified in point a of this clause or posted on the System at least two working days before the bid submission deadline;

d) The content of clarifications of tender documents shall not contradict the content of the approved tender documents posted on the System. If clarification leads to the need to amend the tender documents, the amendment shall be carried out in accordance with Clause 3 of this Article.

5. Extension of bid submission deadline:

a) The tenderer shall send an extension notice along with the extension decision to investors listed in the shortlist (for projects applying competitive dialogue procedures) or post the extension notice along with the approved extension decision on the System;

b) The extension notice shall include the reasons for the extension and the new bid submission deadline.

Article 12. Inviting bids, issuing, amending, clarifying tender documents; extending the bid submission deadline for business investment projects.

1. Tendering:

a) For projects applying limited bidding, the invitation to bid shall be sent to investors listed in the shortlist.

b) For projects applying open bidding, the announcement of invitation to bid shall be posted on the System.

c) For projects applying international open bidding, the bidder shall post the invitation to bid notice in both English and Vietnamese on the System and on the electronic information page of the ministry, central agency, other agencies, sector management body, or provincial People's Committee (if applicable) or an English-language newspaper published in Vietnam.

2. Issuance of tender documents:

a) For projects applying domestic open bidding, the tender documents shall be issued free of charge and with complete file attachments (files) of the tender documents on the System.

b) For projects applying limited domestic bidding, the tender documents shall be issued free of charge and with complete file attachments (files) of the tender documents on the System to investors listed in the shortlist.

c) For projects applying international bidding, the tender documents shall be issued on the System. Investors must submit a deposit equivalent to the price of one set of electronic tender documents when submitting their bid documents according to point a, Clause 9, Article 6, point c, Clause 2, Article 16 of Decree No. 23/2024/NĐ-CP (amended at point a, Clause 11, Article 66 of Decree No. 115/2024/NĐ-CP) and point a, Clause 9, Article 7, point c, Clause 2, Article 17 of Decree No. 115/2024/NĐ-CP.

The bidder shall not issue paper copies of the tender documents to investors. In case the bidder issues paper copies to investors, such paper copies shall have no legal validity for establishing and evaluating bid documents.

When posting the invitation to bid notice, the bidder shall attach the decision approving the tender documents and the approved tender documents.

If the content of the tender documents posted on the System differs from the content of the approved tender documents, the approved tender documents shall serve as the basis for establishing and evaluating bid documents.

3. Amendment of tender documents:

a) If the tender documents are amended after issuance, the bidder must post on the System the decision to amend along with the amended contents of the tender documents.

b) The posting of the decision to amend the tender documents must be completed within a minimum period of 15 days for domestic bidding and 25 days for international bidding before the bid submission deadline. If the posting period for the amended document does not meet this requirement, the bidder must extend the bid submission deadline accordingly.

4. Clarification of tender documents:

a) For projects applying domestic bidding, investors must send a request for clarification of the tender documents to the bidder on the System at least seven working days before the bid submission deadline.

b) For projects applying international bidding, investors must directly send a request for clarification of the tender documents to the bidder at least 15 days before the bid submission deadline.

c) The bidder must post the clarification of the tender documents on the System at least two working days before the bid submission deadline.

d) If necessary, the bidder may organize a pre-bid conference to discuss unclear contents in the tender documents. The discussion between the bidder and the investor must be recorded in a clarification of the tender documents by the bidder and must be posted on the System at least two working days before the bid submission deadline.

The clarification of the tender documents must not contradict the content of the approved tender documents posted on the System. If clarification of the tender documents leads to the need to amend the tender documents, the amendment of the tender documents shall be carried out in accordance with the provisions of Clause 3 of this Article.

5. Extension of bid submission deadline:

a) The bidder shall post the extension notice along with the decision approving the extension on the System.

b) The extension notice shall include the reasons for the extension and the new bid submission deadline.

Article 13. Cancellation, Extension, and Amendment of Published Information

The cancellation, extension, and amendment of published information shall be carried out in accordance with the User Guide.

Article 14. Publication of Investor Selection Results

1. For PPP projects, the tenderer shall publish the results of investor selection and attach the approval decision on the System within ten days from the date of approving the results of investor selection.

2. For business investment projects, the tenderer shall publish the results of investor selection and attach the approval decision on the System within five working days from the date of approving the results of investor selection.

Article 15. Other Information Published on the System and the Procedure for Publishing on the System

1. In addition to the information published on the System as prescribed in Articles 7, 8, 9, 10, 11, 12, 13, and 14 of this Circular, other information shall be published on the System as follows:

a) The bid opening minutes shall be published within twenty-four hours from the time of bid opening;

b) The decision to cancel the bid shall be published within five working days from the date of signing the decision;

c) The resolution of the tenderer's complaints shall be published within five working days from the date of issuing the resolution of the complaint;

d) The list of investors meeting technical requirements shall be published within five working days from the date of approval.

2. The procedure for publishing information under Articles 7, 8, 9, 10, 11, 12, 13, 14, and paragraph 1 of this Article shall be implemented in accordance with the User Guide.

Article 16. Responsibilities of Parties Participating in the System

1. Responsibilities of agencies, organizations, and units specified in points a and d, paragraph 4, Article 3 of this Circular:

a) For PPP projects, they shall fulfill the responsibilities prescribed in Article 94 of the PPP Law and paragraph 1, Article 3 of Decree No. 243/2025/NĐ-CP;

b) For business investment projects, they shall fulfill the responsibilities as prescribed in Article 77 and points a, b, and e, paragraph 2, Article 7 of the Bidding Law;

c) They shall be responsible before the law for the accuracy and honesty of the information registered and published on the System when logging in with their System participation account;

d) They shall check and confirm the publication of their information on the System;

đ) They shall monitor and update the information already published on the System and the information that the System provides feedback;

e) They shall manage and be responsible for the use of digital certificates on the System.

2. Responsibilities of agencies, organizations, and units specified in point b, paragraph 4, Article 3 of this Circular:

a) For PPP projects, they shall publish information on the bidding invitation notice and the results of investor selection as prescribed in point b, paragraph 1, Article 9 of the PPP Law;

b) For business investment projects, they shall fulfill the responsibilities as prescribed in paragraph 2, Article 79 of the Bidding Law;

c) They shall be responsible for the consistency of the documents published on the System with the approved documents;

d) They shall monitor and update the information already published on the System and the information that the System provides feedback;

đ) They shall manage and be responsible for the use of digital certificates on the System.

3. Responsibilities of investors during the process of interest and participation in bidding:

a) They shall be responsible for the accuracy of the attached file of documents during the process of interest and participation in bidding;

b) They shall monitor and update the information on the System for projects in which they have an interest or participate. In case of errors due to not monitoring and updating information on the System leading to disadvantages for the investor during the process of interest and participation in bidding, including: amending the invitation to show interest form, bidding invitation form; changing the submission deadline for the project implementation registration form, bidding proposal; changing the clarification deadline for the invitation to show interest form, bidding invitation form and other contents, the investor shall bear the responsibility and disadvantage during the process of interest and participation in bidding;

c) In cases where the legal representative of the investor authorizes the branch manager, subsidiary company general manager, factory director, and head of other dependent accounting units to perform tasks during the process of interest and participation in bidding, they must use the investor's participation account on the System and not use the participation accounts of branches, subsidiaries, factories, or other dependent accounting units;

d) They shall fulfill other responsibilities including: registering to participate in the System to ensure legitimate status as prescribed in point d, paragraph 1, Article 5 of the Bidding Law; fulfilling responsibilities as prescribed in Article 82 of the Bidding Law; managing the participation account and registered digital certificate on the System.

Chapter III

IMPLEMENTATION

Article 17. Transitional Provisions

1. From the date these Decrees No. 180/2025/NĐ-CP, No. 225/2025/NĐ-CP, No. 243/2025/NĐ-CP, and No. 257/2025/NĐ-CP come into effect until the date this Circular comes into effect, PPP projects or business investment projects that have issued the invitation to show interest form, bidding invitation form, request form shall comply with the provisions of the PPP Law or the Bidding Law (amended and supplemented by Law No. 57/2024/QH15 and Law No. 90/2025/QH15) and detailed decrees. The selection of investors shall be conducted according to the invitation to show interest form, bidding invitation form, and request form that have been issued.

2. For PPP projects and business investment projects that have approved the invitation to show interest form, bidding invitation form, and request form but have not yet issued them at the time this Circular comes into effect, the interested party and the tenderer shall review and update the forms, report to the competent authority for approval to amend according to the provisions of the PPP Law or the Bidding Law (amended and supplemented by Law No. 57/2024/QH15 and Law No. 90/2025/QH15), detailed decrees, and this Circular.

3. For PPP projects and investment business projects that have not yet been approved for tender invitation documents, request for proposal documents, the preparation of such documents shall be carried out in accordance with the provisions of the PPP Law or the Bidding Law (amended and supplemented by Law No. 57/2024/QH15 and Law No. 90/2025/QH15), relevant Decrees detailing these laws, and this Circular.

Article 18. Effective Date

1. This Circular takes effect from the date of issuance.

2. From the date this Circular takes effect, Circular No. 15/2024/TT-BKHĐT dated September 30, 2024, issued by the Minister of Planning and Investment, which stipulates model bidding documents for selecting investors to implement PPP projects and investment business projects; providing and publishing information on PPP projects and investor selection bidding on the National Public Procurement System, shall cease to be effective.

3. During the period when the sector management ministry has not issued guidelines on the application of investment effectiveness evaluation criteria for sectors, fields, and localities, and methods for determining such criteria, the bidding documents shall be prepared based on the templates set forth in Appendices V, VI, VII, and VIII attached to this Circular, but must comply with the legal provisions on bidding, sector management laws, ensuring competitive, fair, transparent, economically efficient, and accountable objectives.

4. In the course of implementation, if there are any difficulties related to the contents regulated in this Circular, ministries, ministerial-level agencies, government agencies, People's Committees at all levels, and related agencies and organizations shall submit their opinions to the Ministry of Finance for timely review and guidance.