Our company�s�he�argest�omestic�esearch�nd�roduction�nterprises�n�food�reservatives�n�hina.We�pecialize�n�he�roduction�f�ood-grade,�harmaceutical�rade,�eed�rade�dditives; Propionic: Calcium propionate, sodium propionate and zinc propionate;�roduct quality to meet HG2921-1999, FCCIV, E282, FAO/WHO, BP98, BP2000 standards. Company has passed ISO9001, BV, HALA, Kosher and TUV certification.�tongtaiweirun rely on the R & D center, high-end equipment and the courage to open up the team, produce high-quality products, sell well in Europe,Africa, Southeast Asia, Russia and more than thirty countries and regions, with customers in harmony, cooperation and win-win!