1956: Hongha Stationary Factory in Hanoi, Vietnam
1961: Chongjin Fountain Pen Factory in Chongjin, DPRK
Zenith, Poland
1963: Cuba Fountain Pen & Ballpen Factory (cancelled)→Xi'an Fountain Pen Factory, Xi'an, China
1967: Kim Anh Fountain Pen Factory, Kim Anh, Vietnam
1980: Sinuiju Disable Soldier Stationary Factory, Sinuiju-si, DPRK