Brass chip prices monthly average trends
（unit：yen/kg）| 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|
| Jan. | ー | 886.1 | 890.3 | 1036.3 |
| Feb. | ー | 898.8 | 901.8 | 1027.2 |
| Mar. | ー | 879.7 | 938.0 | 1052.2 |
| Apr. | ー | 871.0 | 1042.3 | 959.0 |
| May | 926.7 | 828.5 | 1154.5 | |
| Jun. | 939.0 | 854.3 | 1109.1 | |
| Jul. | 801.2 | 864.1 | 1085.4 | |
| Aug. | 849.4 | 881.2 | 962.9 | |
| Sep. | 855.5 | 894.9 | 965.8 | |
| Oct. | 860.9 | 874.5 | 1053.4 | |
| Nov. | 866.8 | 907.7 | 1036.8 | |
| Dec. | 860.4 | 887.7 | 1022.4 |