Probably the most popular Famiclone manufacturer in China, and also a well known name in Russia among other places. Currently the Subor brand name is scattered among several different Chinese companies, but Zhongshan Subor Educational Electronics Co., Ltd (website: http://www.suborchina.com/) seems to be the main game-console-making incarnation.
Recently they have licensed the name out to other companies, including Toycenter, who are now applying the Subor brand name to various non-Subor-made handheld consoles.
They're quite closely tied to Waixing, who handle most (if not all) of the software side of things, as well as selling their own branded versions of Subor consoles. At one point it was said Waixing had bought Subor outright, but neither company's website is particularly forthcoming about the relationship.