Hi Nicolas. I am placing this bid for translating your presentation in both Chinese and Japanese (I have noticed the other project you have posted as well). I am from Hong Kong, so Chinese is my native language, and I can work out both Simplified and Traditional Chinese versions for you. As for Japanese, I have passed the Japanese Proficiency (JLPT) on the N2 level, which is one level away from a native speaking level (actually, I would say I have spent the money for taking the N1 test on travelling to Tokyo instead, haha). And finally, of course, being a girl myself, I think I can help add a chic, edgy, and sophisticated touch to the translation, to parallel that of the English content. Hope to work together on this! :)
P.S.: I spotted a slight misspelling in the presentation - It should be 'weixin' and not 'weixing', and actually, they have already rebranded as WeChat.