Company History
From Shandong Longgang Silicon Industry Technology to Shandong Zhongzhi Chemical Technology
Company Name Transition — Same Legal Entity, Same Manufacturing Foundation
For clients, partners, and regulatory authorities who may encounter our previous company name on historical documents, this page explains the relationship between our former and current company names.
Key Information
- Former Name: Shandong Longgang Silicon Industry Technology Co., Ltd.
- Current Name: Shandong Zhongzhi Chemical Technology Co., Ltd.
- Name Change Year: 2026
- Legal Status: Same legal entity; all rights, obligations, and certifications remain valid
HG/T 2568-2021 Standard Participation
Under its former name of Shandong Longgang Silicon Industry Technology Co., Ltd., our company participated in the drafting of HG/T 2568-2021 Industrial Sodium Metasilicate Standard, a Chinese chemical industry standard for sodium metasilicate.
Official Record — National Public Service Platform for Standards Information
Screenshot from National Public Service Platform for Standards Information. Click to view the official record.
Official verification link: std.samr.gov.cn/search/orgOthers?q=山东龙港硅业科技有限公司
What This Means for Customers
- Our product specifications align with the chemical industry standard
- We have deep technical expertise in sodium metasilicate manufacturing
- The standard drafting process requires demonstrated production capability and quality control
Why Was the Name Changed?
Following corporate strategic development, the company name was updated in 2026 to better reflect our expanded product portfolio and international market positioning. The name change has no impact on:
- Manufacturing facilities and production capacity
- Quality management systems (ISO 9001 / ISO 14001)
- REACH registration and other certifications
- Existing contracts, agreements, and business relationships
- Product specifications and quality standards
Verification of Historical Documents
Some certifications, technical documents, and regulatory filings may still display the former company name. These documents remain fully valid and legally binding. For document verification or to request updated documentation, please contact us.
| Document Type | Validity |
|---|---|
| ISO 9001 Certificate | Valid — Same legal entity |
| ISO 14001 Certificate | Valid — Same legal entity |
| REACH Registration | Valid — Same legal entity |
| MSDS / TDS | Valid — Product specifications unchanged |
| HG/T 2568-2021 Standard | Valid — Standard drafting participation unchanged |
