| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.5 | USD | 20251020 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1211.73 | USD | 20251020 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1028.56 | USD | 20251020 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1197.64 | USD | 20251020 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1141.28 | USD | 20251020 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1268.09 | USD | 20251020 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1078.24 | USD | 20251019 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1268.52 | USD | 20251018 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251018 |