We are a Chinese SEO firm with offices in Shanghai and Hong Kong. For this kind of projects you need a company that understands the market, have Chinese employees and has done similar tasks previously.
We have done SEO for over 40 overseas companies launching websites for the Chinese market. We can provide you a 15-day SEO package, including onsite optimization (content plus meta tags), Chinese search engine submission, plus a strong link building campaign (directories, top classifieds sites, 1 article writing and submission to article directories etc) that will get your site on the right path of the top positions on Chinese search engines.
If you have further question please send me an email through the PMB.
Cheers,
Patrick
Sinovantage International
Shanghai