- YNC Co., Limited
- Address:9, Fuzhou Road
- Dongying City Longxing Chemical Co., Ltd.
- Address:dawang ,guangrao county,dongying city
- Changzhou Rigid Packing Science And Technology Co., Ltd.
- Address:
- Zibo Jinyin Chemical Co., Ltd.
- Address:QILU INDUSTRY PARK LINZI
- Jinan Guantong Commercial And Trading Co., Ltd.
- Address:Yujing Building, Xiwu Road
- Xinneng (Zhangjiagang) Energy Ltd.
- Address:No.25 Beijing Road, Yangtze International Chemical Industry Park, Zhangjiagang Bonded Area, Jiangsu Province
- Beijing Precision Import And Export Co., Ltd.
- Address:Room 323, No.20 Building, 2 Zone, Tianhuayuan Erli, Beijing Economic & Technology Development Zone
- Dezhou Longstone International Trade Co., Ltd.
- Address:18F Building A, TOPBOX No.69 Beichen West Street,Beijing, China
- Xiangxiang singlong Industrial co. ltd
- Address:Dinglong Bldg, Sangmei Mid Road