In China, there might be another one: Huatianfu industrial development co., ltd. of Shantou
It seems they only package, finish and distribute film under the Sunny brand. It seems to be Ferrania.
Not sure if they actually produce film. On this page: http://www.chinacsky.com/co/35150/ t lists Colour film and digital paper as some of their products with the place of origin for film being in China.
What do you know about them?