L-Tryptophan

Established in 2007, located and registered in Qingdao City, Shandong Province of China.

As a manufacturer and exporter of organic fertilizer, bio-fertilizer and compound fertilizers, we supply quality product, serve excellence to our customers.

Thorough inspections of quality, competitive market prices, well developed R&D departments, total customer satisfactions and customization solutions managed by skilled manpower, is helping our business to grow continually.

With the philosophy of "More Than Selling Products and Services", we are committed to research of new products and production techniques, promote environmental protection and education.

We always work hard to provide good products for green agriculture and be your trustworthy source of China.