In the article it is clearly mentioned that TS is in talks with bulge bracket private equity firm. Since TS is still in loss they have decided to postpone going public through IPOSo they don't wants to clarify the ownership and source of funding ?
If not today, in next 2 years they would surely come up with IPO as the private equity firms who are pumping in money would look out to sell their shares through IPO and TS would have assured them the plan for IPO with themIf they goes IPO then need to disclose all things which they don't want.