The group has 850 rooms in Colombo through its Cinnamon Grand and Trans Asia hotels and controls about 40 percent of the 5-star category accommodation in the Sri Lankan capital.
Outside the capital, including in the central hills and Sri Lanka beach areas Keells operates 700 rooms.
"We are very confident of the prospects for tourism in Sri Lanka," says JKH director Ajith Gunewardene.
"The completion of this acquisition it would strengthen our position on the beach which could considered the best in the West Coast [of Sri Lanka]."
The group also has 500 rooms in the Maldive Islands which is a premium market.
Sri Lankan hotels have lost money as an internal conflict intensified from 2006 and Keells as well as Aitken Spence have found their leisure profits boosted by atoll reven