o-Phthalaldehyde is our main product.our OPA purtiy is more than 99%.

Our company has a complete and scientific quality management system, employing senior professional and technical personnel to follow up and monitor the whole process from the entry of raw materials to the exit of finished products, so as to ensure product quality; in terms of service, the company has its own dangerous chemical tankers, which can be delivered to the door in time, and conduct a "customer return visit" to each customer after the use of the product, and carefully discuss and correct the opinions and suggestions put forward by each user. 

We always adheres to the enterprise tenet of "quality first, reputation first", adopts standardized operation, has formed an independent and advanced management system, and relies on its own advantages to constantly expand domestic and foreign markets and rapidly expand production scale. it has established a good strategic cooperative relationship with many well-known enterprises at home and abroad, and is willing to seek common development and create resplendence with friends from all walks of life

Kunshan Tengyu Chemical Co., Ltd. is a trading company specializing in pesticide intermediates, advanced pharmaceutical intermediates and fine chemical products.It is Founded in 2006. Its main market is India, Southeast Asia, Europe and the United States, the Middle East and other countries and regions, welcome to inquire

OPA  is a pharmaceutical intermediate, the latest topical efficient and safe antibacterial disinfectant, as a disinfection and sterilization of endoscopic surgical instruments in hospitals, it can be used to synthesize a new anti-platelet aggregation drug indophene, and it is also an analytical reagent in the chemical field.

Our OPA capacity is 100mt/year