Chee Yuen has authorized two Vietnam factories to produce sealed valve regulated lead-acid batteries and electric vehicle batteries with CASIL brand. Both of two factories are ISO 9001 certified and locate in Ho Chi Minh City, Vietnam.
Chee Yuen has established good business relationship with these two factories on the basis of friendly and truthful cooperation. We have also reached a consensus in terms of price, quality and after-sales service with them. Chee Yuen still takes responsibility for products development & designs as well as provides specification and packaging information of each battery model to Vietnam team before they start purchasing material and production. In the meantime, Chee Yuen also fully assists and supervises the Vietnam team on products quality control and provides detailed inspection standard for each product to ensure that they are able to manufacture qualified products.