Zhugongzi Announcement (2025) Jianzi No. 0322 1. Bidding Conditions: The EPC general contracting of the slope phosphogypsum ecological restoration and greening project of Longjing Bay slag yard of Kaiyang County Development and Reform Bureau has been approved for construction by Guizhou Provincial Enterprise Investment Project Filing Certificate 2309-520121-04-01-376904. The tenderer (project owner) is Guizhou Kaiyang Group Co., Ltd. The construction funds are self raised, and the project contribution ratio is state-owned self raised: 100%. The project has met the bidding conditions and is now open for bidding. 2. Project Overview and Bidding Scope 2.1 Construction Address: Fengshou Village, Jinzhong Town, Kaiyang County, Guiyang City, Guizhou Province. 2.2 Construction Scale and Content: This project aims to achieve ecological restoration of over 200 acres of idle and barren land in the abandoned area of rocky desertification slopes and explosive depots through site remediation, foundation filling, anti-seepage and water-resistant facilities construction, interception and drainage design and construction, and greening. More than 100 acres of usable land will be built, and the project is expected to utilize approximately 2.38 million tons of phosphogypsum plant materials. 2.3 The total investment of the project is 150 million yuan, and the estimated price of this bidding contract (maximum bidding limit) is 114473230.53 yuan. 2.4 Total project duration: 180 calendar days (to be completed before November 25, 2025). 2.5 Scope and Content of Tendering: 2.5.1 Scope of Tendering The main construction content of this project includes but is not limited to: phosphogypsum modification, transportation, compaction and filling, environmental protection measures, landform reshaping engineering, interception and drainage engineering, soil and water conservation measures, ecological reconstruction engineering, and all other services (see preliminary design and other attachments for details). 2.5.2 Bidding Content: This project is an EPC turnkey project, which includes construction drawing design, material procurement, engineering construction, inspection and testing, inspection and testing (not lower than the current national and industry standards), completion documents, completion acceptance, completion settlement, project delivery, etc. Specifically, it includes but is not limited to the following matters: (1) Scope of design work: ① Modification, transportation, compaction and filling of phosphogypsum, ② Environmental protection measures, ③ Landscape reshaping engineering, ④ Water interception and drainage engineering, ⑤ Soil and water conservation measures, ⑥ Construction drawing design, on-site technical services, design technical disclosure, solving design technical problems during construction, project management related work, and coordination and management of completion acceptance and related work. The design must meet all functional requirements for use. (2) Scope of construction work: including completing the construction drawings and all contents that have been reviewed and approved, legally and compliantly disposing of construction waste soil and slag, material procurement, completion delivery, testing and inspection, engineering warranty, submitting relevant technical data, complete completion data, and maintenance during the warranty period. Harmless phosphogypsum production products need to meet the standards of Class I solid waste residue. The indicators of Class I solid waste residue are as follows: the leaching liquid indicators of phosphogypsum backfill materials should meet the relevant indicators requirements of the "Guizhou Province Technical Specification for Harmless Treatment, Comprehensive Utilization, and Temporary Storage Pollution Control of Phosphogypsum (Trial)" (Qianhuan Comprehensive [2024] No. 17) (mainly phosphate)