Where was the ex-soldier accused of leaking military secrets to a foreign agency arrested?

The ex-soldier was arrested in a remote part of China characterized by treacherous and nearly impassable terrain. This challenging location is particularly difficult to navigate due to heavy snowstorms that occur during winter months, making the capture even more remarkable. China's Ministry of State Security conducted the operation in this harsh environment, highlighting the challenges faced by intelligence agencies when tracking individuals with counter-surveillance skills in remote locations. The dramatic arrest in such extreme conditions underscores the seriousness with which China treats cases of military espionage.