WorkVenture gives you an inside look at what it's like to work at CH. Roongreung Group Co., Ltd., office & team photos, reviews and more. This is the CH. Roongreung Group Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at CH. Roongreung Group Co., Ltd..Apply to BTL MedicalApply to Brainfield Co., Ltd.Apply to AML global limitedApply to WV