From 2004~2017, Dr. Lam was Council Member of UNA China.

On 15 June 2022，Dr. Lam visited UNHCR Headquarter Geneva.

On 18 February,2010 Dr. Lam received a signed book from the Vice- president Parayil of United Nations University and later sponsored the publish of ‘ The Future of International Environmental Law’.

Letter of appreciation from WFUNA and UNA-China 2007