| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.62 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.57 | USD | 20251023 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 373.67 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.57 | USD | 20251023 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 338.42 | USD | 20251023 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 303.17 | USD | 20251023 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 243.94 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.52 | USD | 20251023 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.54 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.37 | USD | 20251023 |