[Competitive Negotiation] Procurement Announcement for Safety Acceptance Evaluation Service Project for the Lead-Bismuth Slag Side-Blown Furnace Hot-State Reduction Sub-project of the Copper Smelting Flue Dust By-product Multi-metal Recovery Technology Research Project [Copper Industry Branch]

[Tender Notice] [Competitive Negotiation] Procurement Announcement for Safety Acceptance Evaluation Service Project for the Lead-Bismuth Slag Side-Blown Furnace Hot-State Reduction Sub-project of the Copper Smelting Flue Dust By-product Multi-metal Recovery Technology Research Project [Copper Industry Branch] Purchasing Unit: Copper Branch of Yunnan Tin Co., Ltd. Region: Mengzi, Honghe Hani and Yi Autonomous Prefecture, Yunnan Project No.: 1112-ZY-2607-24505 Published: 2026-07-28 Bid Deadline: 2026-08-03 Bid Opening: 2026-08-03