Mr. Hossain is a Notary Public, People’s Republic of Bangladesh and associated with the following organizations.Asian Patent Attorneys Association, APAA, Japan;European Communities Trademark Association, ECTA,Belgium; Intellectual Property Owners Association IPO, USA;International Association for the Protection of Intellectual Property, Switzerland, AIPPI;International Federation of Intellectual Property Attorneys, FICPI, France;International Trademarks Association, INTA, USA;Member, Anti-counterfeiting Committee, INTA, 2018-2019.Preferred Associate, Brandstock AG, Germany.Member of Supreme Court Bar Association;Kenton Miles, Italy.Dhaka Bar Association,National Bar Association;Bangladesh Patent Attorneys Association.Correspondent to Trademarks Throughout the World, a Thomson West Publication.Member Secretary, Adabar Community Policing, Dhaka Metropolitan Police, Dhaka;Director, Baitul Aman Co-operative Housing Society, Adabar, Dhaka, Dhaka Bar Association;Life Member: Jamalkandi Osmania High School.