[3] He was elected a joint vice-chairman at a conference convened by the International Atomic Energy Agency in 1994 to adopt the Convention on Nuclear Safety.
[citation needed] In 2008, Hassan and 25 other former ambassadors were co-signatories to a letter to the newly formed federal government that demanded the immediate restoration of deposed judges.
They regretted the delay in abiding by the Murree Declaration and said there was no need to link restoration of the judges with constitutional amendments to reform the judiciary.
[6] He is also associated with the Global Peace Foundation[7] and serves on the boards of organisations including the New Jersey Division of the UNA-USA,[8] and the Center for UN Reform Education.
[citation needed] Hassan had been invited speaker at various fora in the United States, Germany,[9] Malaysia, and Pakistan.