According to Radio New Zealand, the Comprehensive and Progressive Trans-Pacific Partnership Agreement (CPTPP) will be in force around December of 2018 after New Zealand plans to be the first of six countries to ratify the agreeement.
As of today, Japan, Mexico and Singapore have ratified the agreement with Australia, Chile and now New Zealand soon to ratify.
In addition to the 11 countries, Colombia, Thailand and South Korea along with Britain also expressed interest in joining the CPTPP.