GENEVA, April 27 -- WANBAO MINING LIMITED (Room701, 7/F, No.338, Guang'anmen Nei Street,Xicheng District, Beijing 100053), 万宝矿产有限公司 (中国北京市西城区广安门内大街338号七层701室) filed a patent application (PCT/CN2025/127256) for "LARGE-SCALE INDUSTRIAL DEVELOPMENT METHOD FOR LOW-GRADE COMPLEX SECONDARY COPPER SULFIDE ORES" on Oct 13, 2025. With publication no. WO/2026/081984, the details related to the patent application was published on Apr 23, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the ...