His party, the Sikkim Democratic Front, has been defeated by the Sikkim Krantikari Morcha (SKM) in the recently held assembly election.
In solace for the 68-year-old outgoing chief minister, he won both Poklok-Kamrang and Namchi Singhithang seats, on way to a record eighth term as a legislator.
The Chinese diplomat suggested that increasing the hours of trade and the number of business days could facilitate the traders on the two sides.
Sikkim Assembly election will be held on April 11 along with the Lok Sabha polls. The state Assembly has 32 MLAs.
Chamling also announced that over 25,000 already employed but unregularised government employees would also be subsequently regularised within 2019 according to their seniority.
With the SC giving green signal to the 45 km railway project from West Bengal to Rangpo in Sikkim, a Ministry of Railway team is set to visit the Himalayan region on March 2.