I. Tendering Methods and Principles

The Company has formulated the “Procurement Management Measures (Trial)” and the “Procurement Tendering Compliance Management Guidelines (Trial)” applicable to its engineering projects, goods, and services based on actual procurement needs. In accordance with these management regulations, the Company's tendering methods include both open tendering and invitation-only tendering. Tendering activities shall adhere to the principles of fairness, openness, impartiality, and integrity, upholding requirements for standardized procedures, impartial evaluation, and effective competition.
Public Tendering: Refers to the tenderer inviting unspecified legal entities or other organizations to bid through a tender announcement.
Invitation Tendering: Refers to the purchaser inviting specific legal entities or other organizations to bid via a letter of invitation to tender. II. Tender Preparation Phase

1. Determination of Tender Procurement Requirements
When drafting tender announcements or delivering letters of invitation to tender, the company's tender department must clearly define the procurement project requirements to prepare tender documents. Document content includes but is not limited to technical specifications, contract terms, and bid evaluation criteria.

2. Internal Approval
In accordance with the company's “Three Meetings” decision-making process, the tender department must obtain internal approval before issuing tender documents. The General Manager's Office Meeting reviews and approves the tender application and plan to ensure the tender documents are lawful, compliant, and reflect the company's genuine intent.

3. Announcement Publication
Tender announcements are published through public platforms (Guizhou Sunshine Property Rights Exchange Co., Ltd., the company's official website, and on-site locations) to disclose project information and invite potential bidders to participate.

III. Bidding Phase
Potential bidders obtain the tender announcement from designated channels or platforms and submit bid documents in paper or electronic format before the specified deadline. Bidders must prepare bid documents as required, including but not limited to technical proposals, service quotations, and qualification certificates, which serve as the eligibility criteria for the bidding process.

IV. Bid Opening and Evaluation Phase

1. Bid Opening Stage
After collecting bids from three or more bidders, the company convenes a dedicated internal bid evaluation team meeting. Bids are publicly opened under the supervision of the disciplinary inspection and supervision post to ensure transparency and openness. Key information such as bidder names and quotations must be accurately recorded during the bid opening process for reference in bid evaluation.

2. Bid Evaluation Phase
The company's bidding department shall establish a bid evaluation team in accordance with the bidding documents and approved bidding plan within its authority. The team shall consist of an odd number of 3 to 7 members, including heads or designated representatives from relevant departments such as the bidding department, marketing and procurement center, party affairs and human resources department, finance department, and other relevant departments, as well as designated personnel with relevant professional expertise. Discipline inspection and supervision personnel shall participate in the supervision throughout the process. For technically complex or specialized procurement projects, external procurement experts may be selected as tender panel members as needed.
During evaluation, the panel reviews tender documents according to the assessment methodology, independently expresses opinions, and comprehensively evaluates factors such as technical specifications and pricing. Upon completion of the review, the panel prepares and signs an evaluation report, recommending the winning candidate to the company.

V. Awarding Stage

1. Bid Evaluation Result Approval
The bidding department submits the bid evaluation report prepared by the bid evaluation panel to the company's General Manager's Office Meeting for approval and decision.

2. Bid Award Notification
After determining the winning bidder, the company issues a bid award notification and publicly announces it through channels designated by the company and accessible to the winning bidder. The public notice period shall be no less than 3 working days. The winning bidder shall provide a written response to the company and complete transaction procedures within 2 working days after the public notice period ends.

3. Contract Execution, Performance, and Documentation Management
The procurement department shall handle post-contract signing procedures in accordance with the company's contract execution process and oversee the full performance of the contract. Upon project completion, the procurement department must conduct a rigorous acceptance inspection. Settlement shall be processed only after successful acceptance, with the contract price and actual settlement amount matching the quotation in the successful bidder's tender documents.
The procurement department shall archive all documents from the entire bidding process for future reference.