Hualu Engineering Technology Co., Ltd. Shaanxi Nonferrous Tianhong Ruike Silicon Materials Co., Ltd. 80000 ton Electronic Grade Granular Polycrystalline Silicon Industry Upgrade Project (First Step 25000 ton Project) Hard Seal Ball Valve Public Negotiation and Transaction Announcement 1. Project Information Procurement Project Number: 22264-XJ-PL031 Procurement Project Name: Hard Seal Ball Valve Section (Package) Number: 22264-XJ-PL031/01 Section (Package) Name: Hard Seal Ball Valve - Package 012. Transaction Result Transaction Supplier: Chaoda Valve Group Co., Ltd. 3. Contact Information Procurement Person: Hualu Engineering Technology Co., Ltd. Address: No. 7 Tangyan South Road, High tech Zone, Xi'an City, Shaanxi Province Postal Code: 710000 Contact Person: Dan Xuchen Phone: 18729513866 Email: dxc3071@chinahualueng.com Hualu Engineering Technology Co., Ltd. April 28, 2025