GENEVA, May 9 -- HWA NATURAL GAS COMPANY LIMITED (Room 9-10, 16/F, China Construction Telecom Building, No. 11 Wo Shing Street, Fo Tan, Hong Kong, ChinaHong Kong), 华燃气有限公司 (中国香港特别行政区香港火炭禾盛街11號中建電訊大廈16樓9-10室) filed a patent application (PCT/CN2025/095763) for "SYSTEM AND METHOD FOR PREPARING NATURAL GAS BY ULTRAHIGH-TEMPERATURE STEAM-ACCELERATED COAL METAMORPHIC EVOLUTION AND HYDROCARBON GENERATION" on May 19, 2025. With publication no. WO/2026/091482, the details related to the patent application was published on May 07,...