Raw material control
All raw material suppliers are under review and audit. All suppliers much going through sample analyzing, sample tryout and signing quality guarantee agreement before becoming a qualified supplier of Trooyawn.

Production process control
Trooyawn has a complete production workshop system based on superior production equipment and the design by experienced National Chemical Design Institute. The whole process is controlled by advanced system such DCS.

Advanced analyzing instruments
In the lab of IRC there are: HPLC, GC, Particle size Analysers, KF analyzer, PH meter, whiteness analyzer, melting point analyzer, spectrophotometer, etc.

Control samples
Trooyawn chemical retains control samples for all its products for one year for re-evaluation, in case of a product complaint.

Rapid response
Facing the special requirement from customer, we will organize experts to give a full solution timely.