1997

ZHH was founded in Chongqing in April

2000

Shanghai Office was set up in March

2000

Chengdu Office was set up in October

2002

The fully integrated partnership reform was launched in March

2004

Beijing Office was set up in October

2010

Guiyang Office was set up in August

2013

Hong Kong Office was set up in January and associated with ONC Lawyers

2016

New York Office was set up in June

2017

Jiangbei Office was set up in April

2019

Liangjiang Office was set up in June