WorkVenture gives you an inside look at what it's like to work at S. Tong Chemicals Co., Ltd., office & team photos, reviews and more. This is the S. Tong Chemicals Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at S. Tong Chemicals Co., Ltd..Apply to Skykick arenaApply to Italthai EngineeringApply to AFSApply to WorkVenture Technologies