WorkVenture gives you an inside look at what it's like to work at Chai Sa-nguan Trading Co., Ltd., office & team photos, reviews and more. This is the Chai Sa-nguan Trading Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Chai Sa-nguan Trading Co., Ltd..Apply to Posco Coated Steel ThaApply to MMP CoatingsApply to S&JApply to WorkVenture Technologies