LAS VEGAS, July 31, 2025 (GLOBE NEWSWIRE) -- Asia Broadband Inc. (OTC: AABB) ("AABB" or the "Company") a dynamic leader in junior gold and silver production in Mexico, is proud to announce the acquisition of a proprietary reduced graphene oxide (rGO) gold recovery technology from a private consortium of former mining executives, engineers and nanotech chemists. The acquisition includes all rights, trade secrets, and proprietary processes related to the high-yield rGO membrane system, in exchange for 940,000 ...