Zhonglian Chemical Successfully Renews OU Kosher Certification for Silica Product Portfolio

JINAN, China – Nov. 2, 2026 – Zhonglian Chemical (Shandong) Co., Ltd., a leading China-based manufacturer of high-purity silica materials for global food, feed and industrial applications, announced today that it has officially renewed its Kosher certification issued by the Orthodox Union (OU), the world’s most authoritative kosher certification body.

The renewed certificate, bearing the number O266, confirms the company’s full range of Pareve OU-4 silica products fully comply with strict kosher dietary regulations. The certified portfolio covers food-grade anti-caking agents, carrier silica, feed-grade silica additives and other core products, all classified as Pareve — meaning they contain no meat, dairy or their derivatives, and are compatible with all kosher dietary categories.

The renewal followed a rigorous on-site audit conducted by OU’s authorized inspection team. Auditors carried out a full review of the company’s production workshops, raw material sourcing systems, equipment sanitation protocols, quality testing procedures and document management systems, and verified that the entire manufacturing chain meets OU’s stringent kosher production standards.

As the global gold standard for kosher certification, OU Kosher is recognized across more than 100 countries and serves as a critical market access credential for ingredient suppliers targeting North America, Western Europe, Israel and other regions with mature kosher consumer markets. Holding valid OU certification allows the company’s global clients to develop and launch kosher-compliant end products without additional dietary compliance verification.

“Successfully renewing our OU Kosher certification is both an authoritative recognition of our quality system and a key step in our global market layout,” said a spokesperson from the company’s Quality Assurance Department. “As a global silica material supplier, we always take regulatory compliance and product quality as our top priorities. This certification will help our partners expand their kosher market reach while ensuring the stability and compliance of their supply chains.”

The OU Kosher renewal further enriches the company’s international certification matrix, which already includes FAMIQS, Halal and FDA-aligned production qualifications. The company currently exports its products to over 30 countries and regions, serving multinational customers in the food processing, animal nutrition, personal care and pharmaceutical industries.

Looking ahead, the company will continue to invest in production process upgrading and quality system optimization, expand its global compliance credentials, and deliver reliable, high-standard silica material solutions to partners worldwide.