投资10亿，两大电子玻纤项目签约

Group 1 - The article discusses a signing ceremony between the Qingcheng District People's Government and two subsidiaries of the Jiantao Group, with a total investment of nearly 1 billion yuan for capacity expansion projects [2] - Qingyuan Zhongxin Century Electronic Materials Co., Ltd. ranks among the top three globally in electronic yarn production, while Qingyuan Kai Rongde Electronic Special Materials Co., Ltd. is the largest single factory production base for high-quality electronic-grade glass fiber cloth [2] - The special electronic glass fiber cloth project, with an annual production capacity of 75 million meters, is expected to generate an annual output value of no less than 1 billion yuan and an annual tax contribution of no less than 50.83 million yuan [2] Group 2 - The special glass fiber expansion and efficiency improvement project will add three production lines to the existing low dielectric constant special glass fiber kiln production line, with a total investment of 280 million yuan [2] - The project is expected to produce an additional 3,000 tons of low dielectric constant special glass fiber annually upon reaching full production [2]