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| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 1015.09 | USD | 20251021 | 
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 1029.18 | USD | 20251021 | 
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1015.09 | USD | 20251021 | 
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1014.47 | USD | 20251020 | 
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 1028.56 | USD | 20251020 | 
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 1014.47 | USD | 20251020 | 
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 | 
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 915.84 | USD | 20251020 | 
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 915.84 | USD | 20251020 | 
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |