In 1897, Taiwan Governor-General Office regulated the Opium Monopoly Plan. Taipei Nanmen Factory, constructed in 1899, was an important place for the production and testing of camphor and opium. In 1901, the Factory was renamed as Nanmen Factory. In 1931, it was called Taipei Nanmen Factory. It was the only government-run camphor manufactory in Taiwan during Taiwan under Japanese rule. After WWW II, it was called Taiwan Provincial Camphor Refinery. In 1956, the name was changed into Taiwan Provincial Camphor Factory. After its closure in 1967 because of privatization, the land belonging to the factory was subdivided and sold off since 1974 for construction of new buildings. The east part belongs to Central Bank, the north part goes to the Ministry of Finance and the south part belongs to Taiwan Land Development.