Vennok is global advanced manufacturer and supplier of Rubber additives in Shanghai China, and we are always driving the development of rubber chemicals industry.

With the advantage of modern logistics and convenient transportation in Shanghai, our products exported to North and South Americas, Canada, Korea, South-east Asia, Middle East, Africa, India, Iran etc. Our products are widely used for tires, rubber tube & belts and so on, and wined good reputation in the market at home and abroad.

As professional manufacturer, advanced production equipment and precision testing instruments have been used in our factories. Leader Technologies has a strong R&D team to focus on the research and develop Functional Auxiliary Agents for rubber & tire industries. With the investment and expansion of capacity step by step, Leader Technologies aims to become a large-scale & respected international company.

Products Designed Capacity 30,000MT/year JERINA® – Functional Additives 15,000MT/year LEATEZ® – Insoluble Sulfur 30,000MT/year PENORL® – Rubber Adhesive 10,000MT/year VESTOX® – Rubber Antioxidant 8,000MT/year PENORL® – Phenolic Resin 20,000MT/year VENNOK® – Rubber Accelerator Innovation and Development Vennok has a very experienced team to provide technical supports on tire production, such as Technological Innovation, Tire Formulation Improvement, Workshop Construction Planning, Equipment Modification, Tire Quality Improvement etc. We are dedicated to providing one-stop services for the tire industry.

As a professional manufacturer, advanced production equipment and precision testing instruments have been used in our factories. Vennok has a strong R&D team to focus on the research and develop Rubber Functional Additives for rubber & tire industries.

With the investment and expansion of capacity step by step, Vennok aims to become a large-scale & respected international company.

Company Manifesto We are following science and technology, We are seeki