It IS available in Taiwan. I just don’t recall where I bought mine. Either a local hardware shop or The Artist Formerly Known as Big Orange.
Seriously, it was B&Q, te4li4 or te4li4wu1 in Chinese, but they lost the B&Q name, and just replaced that part of the sign with blank orange space. The sign is a big orange square. Furriners might as well just keep calling it B&Q for convenience.