http://www.nationmultimedia.com/opinion/TPP-vs-RCEP-A-new-Washington-Beijing-tug-of-war-30195647.html

 the Trans-Pacific Partnership (TPP). 

 the new Regional Comprehensive Economic Partnership (RCEP).

The US is the engine behind the TPP, which doesn't include China. The RCEP has China as a major founding member, and the US isn't part of that new regional scheme.