To whom it may concern:

We are writing to invite your company to participate in quotation on the Owner’s Engineer for the Turpiales Project.

1、Procurement scope

China Three Gorges Latam Holding S.à r.l. (hereinafter “CTG Latam” or the “Company”) is a wholly owned subsidiary of China Three Gorges Corporation (through CTG International), the largest clean energy group in China and one of the world's largest hydropower developers. The company conducts overseas acquisitions and post-transaction management, with a focus on renewable energy in Latin America.

Currently, The Company requires the support of a specialized Consultant (hereinafter the “Bidder”) for the Technical-Administrative Supervision in the stages of preconstruction, detailed engineering, supplies, construction, commissioning and start-up (including COD declaration), and construction phase closure (including the Punch List and the CNO 1612 agreement) of the solar photovoltaic Project Turpiales, which has the following general characteristics:

	Turpiales
SPV	Fotovoltaico Turpiales SAS
Peak capacity	345MWp
Nominal capacity	278.6MWn
Technology	Trackers, Bifacial PV Modules, String Inverters
Interconnexion	Ocaña 500kV, 24km
Location	Rio de Oro, Cesar
Annual production (P50, 1st year)	656.813 MWh
Expected RTB	December 2023
COD (Estimated)	Nov. 2025

Note: The Bidder will have access to the project data room once the non-disclosure agreement has been signed; R&D projects may included in the development process of the project.

2、Requirements and materials for participation

(1) Qualification requirements: Bidders shall be a legally registered enterprise for more than 5 years.;

(2) Financial requirements: Bidders shall have no continuous deficit in the past 2 years, audited financial report required (2021and2022, English version);

(3) Performance requirements: In the past 3 (three) years, the bidders should have similar solar projects’ experience which the capacity should over 300 MW (The contract needs to be signed between August 2021 and August 2023) in total, among which, at least 1 project should be in Colombia. Materials: Need to provide any official (with signed) materials that can be seen as Proof of Technical Capacity (refer Annex B for detailed information);

(4) Team requirements: The project team leader shall have successfully led 3 (three) similar projects in 8 (Eight) years; beside team leader, the team composition, such as quantity, seniority, is also needed to provide. On-site team should at least include Project manager (1), Site manager (1), Project Engineer (1), Civil Supervisor (1) and Civil Engineer (1), Electrical Supervisor (1) and Electrical Engineer (1), Environmental Engineer (1), Social Engineer (1), Health and Safety Engineer (1), Mechanical Engineer (1), Contract Engineer (1), and Logistic Engineer (1). Materials: please refer to Annex B for detailed information;

(5) Credit requirements: Bidders are required to complete Annex E and also adhere to the CTGI Compliance Policy (Annex F).

*Notes (IMPORTANT)：

1. The requirements and materials above are threshold for participation and shall be met at the same time.
2. The Bidders may be required to provide the supporting documents to prove that the above requirements are met.
3. The Bidders shall ensure the authenticity and validity of the provided information.
4. Any provision of false information will result in the Bidder being disqualified/rejected or even bear the corresponding legal responsibility.
5. If authorization is involved, the power of attorney or equivalent documents should be provided.

3、Acquisition of the Procurement Document

For Bidders in China:

3.1 The bid invitation documents will be released from 09:00 on November 16, 2023 to 17:00 on November 26, 2023 (Beijing time, the same below).

3.2 The bid invitation documents are only available for free in electronic version.

3.3 Interested bidders shall visit the new electronic procurement platform of CTG Corporation (website: https://eps.ctg.com.cn/ (hereinafter referred to as "new platform"; service hotline: 400-665-1995 ext 2) for free registration as a registered supplier:

(1) For supplier users who already have registered an account on the old electronic procurement platform of CTG Corporation (http://epp.ctg.com.cn/), they can directly use the mobile phone number reserved when registering for the old platform to reset the password by "forgetting password". If any error occurs, please contact the service hotline of the platform.

(2) For supplier users who have not registered an account on the old platform, they can submit information directly through the registration portal of the new platform to file an application, and become a bidder of the new platform after being reviewed and approved.

3.4 To participate in this project, you must visit the new platform. During the time of selling bid invitation documents specified in the bid invitation documents, click the [Participate Now] button on the "Bid Management - I Want to Participate" page to jump to the "Bid Management - My Project" page, and click the [Purchase Document] button on this item, and follow the prompts to complete the payment operation. The bidder can only choose online payment (units or individuals are allowed) to complete the payment for the bid invitation documents. Please make payment strictly according to the page prompts. If the payment is successful, the new platform will automatically open the download permission of the bid invitation documents according to the transaction results sent by the bank.

3.5 Offline preparation (signature, encryption) and online submission (encrypted electronic bidding documents need to be uploaded to the new platform for submission) of bidding documents, bid opening (decryption, confirmation of quotation) and other links of this project require the use of CA electronic keys ( CA electronic keys are not required at bid invitation document purchase stage). You should apply for the new platform CA electronic keys on the designated website of Beijing Certificate Authority Co., Ltd (hereinafter referred to as "Beijing CA"; website is https://esign.ctg.com.cn and service hotline is 010-5851 5511/400 700 1900, with the processing time of about 5 working days). Potential bidders are requested to apply for it in a timely manner to avoid affecting the bid. The consequences of failing to apply for the CA electronic key in a timely manner, thereby affecting the bid shall be borne by the bidder itself.

3.6 The CA electronic key and electronic seal that have been registered on the old platform and applied on the designated website of iTrusChina (https://ixin.itrus.com.cn/s/sanxia) are not applicable to the new platform and should be re-applied according to the requirements of the new platform.

For bidders outside of China:

Electronic procurement document will be sent through enterprise communication (Ariba system), and no hard copy will be sent. If the supplier has not yet joined the Ariba system, please contact the contact person according to the announcement and the contact person will invite to join the Ariba system.

The bid invitation documents will be released from 09:00 on November 16, 2023 to 17:00 on November 26, 2023(Beijing time). Please note that it takes approximately 2-3 business days to complete the Ariba system registration.

4、Submission of proposal documents

For Bidders in China:

4.1 Electronic proposal documents shall be send to the Tenderee's office in the building 5 of Chengda Centre, specifically, the Meeting Room 802 in Chengda Centre building 5, Liangshi Road, Tongzhou District, Beijing, China before 21:00 on December 22, 2023（Beijing Time）.

4.2 Bid opening time: the same as the bid deadline and the tenderee will prepare minutes of the Bid Opening.

For bidders outside of China:

Electronic proposal documents shall be submitted online through enterprise communication (Ariba system) in PDF format; no hard copy of proposal document is required.

Deadline for proposal documents submission: 21:00 on December 22, 2023 (Beijing time).

5、Medium for issuing a notice

The notice of invitation for bids will be released on the China Tendering and Bidding Public Service Platform (http://www.cebpubservice.com), the new electronic procurement platform of CTGCorporation (https://eps.ctg.com.cn), CTG Latam official website (https://ctglatam.com), CTG Latam LinkedIn at the same time.

6、Contact Information

Company Name: CTG Colombia Holding S.A.S. (“CTG Latam”)

Contact Address: Cra 11 # 77A-49 Of. 601 Bogotá - COL

Contact Person:

HEZHI LIU Phone: + 57 311 235 8160	Email: hezhi.liu@ctglatam.com
JULIAN MARTINEZ Phone: + 57 311 877 8346	Email: Julian.Martinez@ctglatam.com
CHENZIHAN TU Phone: + 0086 010-56513759	Email: tu_chenzihan@ctg.com.cn

招标人或其招标代理机构主要负责人（项目负责人）： （签名）

招标人或其招标代理机构： （盖章）