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Zhang Dejiang and his team accompanied by Dr. Ji Yong, the company's chairman and general manager, went to the company's No. 1 plant. Ji Yong introduced to Zhang Dejiang and his party. "The company has the most advanced sapphire production and processing technology in the world and has produced 100 kg of mass production. Sapphire crystals fill the gap in mass production of large-size sapphire crystals in China."
Zhang Dejiang visited the enterprise workshop. After understanding the production process, industry prospects and supporting the industrial chain, he said cordially to Ji Yong: "Guizhou's economy is underdeveloped. Especially the lack of high-tech enterprises, this project has high technical content and good market prospects. I hope that you will keep an eye on the market, keep an eye on the top end, extend the industrial chain, and seize the products with high production technology and high added value, and become bigger and stronger as soon as possible.†Ji Yong expressed his heartfelt thanks to the leaders of the central leadership and said that he Tianguang will surely overcome difficulties, grasp production and meet difficulties, and strive to promote the labor force, resource utilization and economic development of Guizhou. 
State leader Zhang Dejiang went to Qitian Optoelectronics for inspection work
On the morning of November 25, 2011, Zhang Dejiang, member of the Political Bureau of the CPC Central Committee and vice premier of the State Council, made a special trip to Guizhou Haotian Optoelectronics Technology Co., Ltd. to inspect and guide the project of producing 30 million LED sapphire substrate materials per year. Accompanied by the inspection, Li Zhanshu, secretary of the Guizhou Provincial Party Committee, deputy secretary of the provincial party committee, governor Zhao Kezhi, member of the provincial party committee and secretary of the municipal party committee Li Jun.