What is the origin of "HarmonyOS Comics" and "Chen San Comics"? Why are they all closed down?

A few years ago, Chen San Cartoon Company, which made Blue Cat, went bankrupt. Later, it was acquired by HarmonyOS Animation led by wang hong as a subsidiary of HarmonyOS Animation to develop new animation. Later, HarmonyOS Cartoon was acquired by the listed company Great Wall Cartoon at a high premium because of poor management, and became a part of the listed company Great Wall Cartoon.