How did the name of Tencent Hong Kong stocks change?

It is normal to change the name, and the owner can change the name at will without restriction.

Jin Baoli New Energy was renamed United Photovoltaic, SF Optoelectronics was renamed SF Clean Energy, and Hanergy Solar was renamed Hanergy Thin Film Power Generation.

I feel that A shares are generally renamed after backdoor. Why are Hong Kong stocks so capricious?