Company Story
Professional silicate manufacturing with global reach
Factory Strength
Modern manufacturing facility with proven supply capability
Official International Website / 官方国际站
This website (www.zzhchem.com) is the official international website of Shandong Zhongzhi Chemical Technology Co., Ltd. / 山东众智化工科技有限公司.
Former company name: Shandong Longgang Silicon Industry Technology Co., Ltd. / 曾用名：山东龙港硅业科技有限公司.
Main Products
Core product categories with multiple grade options
Factory Gallery
Modern chemical manufacturing and production facilities
Why Choose Zhongzhi Chemical
Four reasons customers trust us as their silicate supplier
Industries We Serve
Key application areas for our sodium metasilicate and sodium silicate products
Builder for industrial and household detergents
Coagulant aid and corrosion inhibitor
Deflocculant and binder for ceramic processing
Heavy-duty degreasing and metal treatment
Acid-resistant cement and mortar additive
Drilling fluid additive and soil stabilizer
Our Manufacturing Journey
Growth and development in sodium metasilicate and sodium silicate production
Company Founded
Established sodium silicate manufacturing operations in Shandong Province
ISO 9001 Certified
Quality management system for sodium metasilicate production
Production Expansion
Expanded sodium metasilicate and sodium silicate manufacturing capacity
ISO 9001 & ISO 14001 Certified
Upgraded quality and environmental management systems
Global Export Expansion
Started serving international sodium metasilicate customers across multiple regions
Company Name Transition & Standard Participation
Formerly Shandong Longgang Silicon Industry Technology Co., Ltd., renamed to Shandong Zhongzhi Chemical Technology Co., Ltd. Under its former name, the company participated in drafting HG/T 2568-2021 Industrial Sodium Metasilicate Standard.
Serving Global Customers
Providing sodium metasilicate and sodium silicate products to 15+ countries worldwide
Certifications & Quality Documents
Manufactured under internationally certified management systems
Available Documents for Your Order
Company Name History & Legal Information
Important information for verification of historical documents
For historical reasons, some certificates and documents may still show our previous company name (Shandong Longgang Silicon Industry Technology Co., Ltd.). Please note that Zhongzhi Chemical and the former company name refer to the same manufacturing entity.
All production facilities, quality systems, and export operations remain unchanged. Existing certifications, technical documents, and historical records issued under the former name remain valid and traceable.
Official Brand Heritage Declaration
Shandong Zhongzhi Chemical Technology Co., Ltd. (formerly Shandong Longgang Silicon Industry), as the key drafter of the National Industry Standard HG/T 2568, continues to deliver the same 100,000+ ton capacity, elite quality, and industry leadership that once outcompeted global giants. We are upgrading our brand to meet global demands, while maintaining the same unparalleled manufacturing excellence.
Official Company Information
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