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| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.13 | USD | 20250726 | 
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1092.15 | USD | 20250726 | 
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1008.14 | USD | 20250726 | 
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 840.11 | USD | 20250725 | 
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1092.15 | USD | 20250725 | 
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.15 | USD | 20250725 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.13 | USD | 20250725 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1057.14 | USD | 20250725 | 
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.15 | USD | 20250725 | 
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.66 | USD | 20250724 |