On the road to internationalization, STEKI's thinking and exploration of corporate social responsibility are also deepening. But for growing STEKI, corporate social responsibility is not only the DNA of corporate sustainable development, but also STEKI's world business card. From a homegrown private enterprise to today's multinational enterprise, STEKI's development has gone through several key stages. In each stage, STEKI's understanding of corporate social responsibility has been different, and his colleagues have deepened their understanding of corporate social responsibility and obligation, and are more committed to shoulder more social responsibility and obligation. Create more sustainable social value for the country and society.