Below are some China related business groups ,which might be of interest for you.

Entrepreneurs Meet Investors 投融资项目交流
http://www.linkedin.com/groups?gid=4462646

China Hospitality Industry 中国酒店业
http://www.linkedin.com/groups?gid=4476879

China IT Industry 中国电子信息产业
http://www.linkedin.com/groups?gid=4460583

China Agriculture Industry 中国农业
http://www.linkedin.com/groups?gid=4460588

China Real Estate 中国房地产业
http://www.linkedin.com/groups?gid=4460594

China logistics Industry 中国物流业
http://www.linkedin.com/groups?gid=4460600

China Construction Industry 中国建筑业
http://www.linkedin.com/groups?gid=4460603

China Textile & Garment 中国纺织服装业
http://www.linkedin.com/groups?gid=4460605

China Chemical Industry 中国化工
http://www.linkedin.com/groups?gid=4460606

China Mining Industry 中国采矿业
http://www.linkedin.com/groups?gid=4460610

China Automotive Industry 中国汽车业
http://www.linkedin.com/groups?gid=4460615

China Wholesale & Retail industry 中国批发零售业
http://www.linkedin.com/groups?gid=4460619

China manufacturing industry 中国制造业
http://www.linkedin.com/groups?gid=4460625

China New Energy Industry 中国新能源产业
http://www.linkedin.com/groups?gid=4460629

Suzhou Business Connections 苏州商务社区
http://www.linkedin.com/groups?gid=4277775

Hangzhou Business Connections 杭州商务社区
http://www.linkedin.com/groups?gid=4277807

Nanjing Business Connections 南京商务社区
http://www.linkedin.com/groups?gid=4277771

Shaoxing Business Connections 绍兴商务社区
http://www.linkedin.com/groups?gid=4277797

Wuxi Business Connections 无锡商务社区
http://www.linkedin.com/groups?gid=4277781

Changzhou Business Connections 常州商务社区
http://www.linkedin.com/groups?gid=4277786

Wenzhou Business Connections 温州商务社区
http://www.linkedin.com/groups?gid=4277813

Ningbo Business Connections 宁波商务社区
http://www.linkedin.com/groups?gid=4277819

Beijing Business Connections 北京商务社区
http://www.linkedin.com/groups?gid=4277792

Shenzhen Business Connections 深圳商务社区
http://www.linkedin.com/groups?gid=4277790