Sinopec (Henan) Refining and Chemical Co., Ltd. Centralized Bidding Announcement for Refining and Chemical Three Agents 2026-2027 (Public, Bird's Nest Type Corundum Proppant) Proppant\Various Types_Alumina Content >90%_Bird's Nest Shape

[Tender Notice] Sinopec (Henan) Refining and Chemical Co., Ltd. Centralized Bidding Announcement for Refining and Chemical Three Agents 2026-2027 (Public, Bird's Nest Type Corundum Proppant) Proppant\Various Types_Alumina Content >90%_Bird's Nest Shape Purchasing Unit: Sinopec (Henan) Refining & Chemical Co., Ltd. Agency: 中国石化国际事业有限公司北京招标中心 Region: Mengjin District, Luoyang, Henan Project No.: NWZ260909-1001-133668 Published: 2026-08-27 Document Deadline: 2026-09-02 Bid Deadline: 2026-09-09 Bid Opening: 2026-09-09