Taiwanese 一江食品 brand soy sauce. It is much cheaper (1/10th price) than normal.
Singapore does not import it.
No import of chemical-tainted soy sauce from Taiwan, says AVA - Channel NewsAsia
Danger is that hawkers and restaurants (in Taiwan) could be tempted to use this stuff (due to low cost). It is sold in bulk containers for commercial use, in addition to small containers for home use.
I use this at home. Japanese brand but brewed in Singapore.