The deal was valued at 299 million dollars or 29.8 billion yen by NTT Communications which sold out after being the de facto managing shareholder for about a decade after the state-run firm was privatized.
"GTH and UT will commit resources to support the Board and management of SLT to create additional opportunities for its employees and to achieve the overall objectives of the company," the UT group said in a statement Tuesday.
"The Board of GTH views the investment in SLT to be a strategic investment and looks forward to working with the other shareholders of the company, including the Government of Sri Lanka¦"
The Sri Lanka government has a 49.5 percent stake in the firm. NTT had the right to appoint a chief executive under a