Tsewang is a business owner of Tibetan Art Gallery, in Singapore. The gallery has numerous collections of historical Tibetan antiques and cultural items that are put up on sale for customers. His initiative has helped promote Tibetan art and culture in outside world. He also owns a retail garment shop in Singapore. Tsewang was one of the founding members of Regional Tibetan Youth Congress, Dehradun and has served in capacity of General Secretary and President of RTYC over span of 11 years. He is currently a member of Tibetan Chamber of Commerce.
With over 35 years of experience working in wholesale and retail business, Tsewang has forayed in field of carpet manufacturing, worked in hospitality sector in NYC and Office of Snow Lion Publications in Ithaca, NY and engaged in real estate business based in Nepal and India. He has completed diploma courses in business administration and hotel management from Cornell University in 1990.