WorkVenture gives you an inside look at what it's like to work at Cham-serm Petroleum Co., Ltd., office & team photos, reviews and more. This is the Cham-serm Petroleum Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Cham-serm Petroleum Co., Ltd..Apply to SSTP EnterpriseApply to Twooriginal CakeApply to RobowealthApply to WV