Core Points - Fangzheng Technology's non-public stock issuance has been approved by the Shanghai Stock Exchange [1] - The issuance will involve no more than 35 specific investors, including the controlling shareholder Huanxin Fangke, who will subscribe with cash for up to 23.50% of the total issuance [3][4] - The total amount raised from this issuance will not exceed RMB 198 million, which will be used for the AI and high-density interconnect circuit board industry base project [4][5] Summary by Sections Issuance Details - The issuance price will be no less than 80% of the average trading price over the 20 trading days prior to the pricing date [4] - The total number of shares to be issued will not exceed 30% of the total share capital before the issuance, amounting to a maximum of 1,282,122,866 shares [4] Financial Information - The total investment for the AI and high-density interconnect circuit board industry base project is RMB 213.11 million, with RMB 198 million planned to be raised through this issuance [5] - Huanxin Fangke, as a controlling shareholder, holds 23.50% of the company's shares and will participate in this issuance [5] Regulatory and Institutional Aspects - The issuance is considered a related party transaction due to Huanxin Fangke's status as a controlling shareholder [5] - The sponsoring institutions for this issuance are Guojin Securities Co., Ltd. and Huajin Securities Co., Ltd. [5]

Core Viewpoint - The article discusses the differences between quartz powder and silica micro powder, including their production methods, physical and chemical properties, and application fields. Group 1: Definitions and Production - Quartz powder is a coarser form of SiO2 obtained by crushing quartz ore, while silica micro powder is a finer form produced through grinding or chemical methods to achieve high purity [1] - Micro silica, also known as silica fume, is a byproduct of industrial processes, specifically from the collection of smoke dust in smelting plants, containing about 90% SiO2 [3] - White carbon black is produced through chemical methods and can achieve a purity of up to 99% with particle sizes ranging from 10 to 20 nm [3] Group 2: Historical Context - The earliest silica micro powder originated from dust collected from steel plant chimneys, primarily used in the refractory materials industry in the early 1990s [4] - In the late 1990s, the rapid development of the electronic circuit board industry in China led to the ultra-fine purification of quartz powder, which became known as silica micro powder [5] Group 3: Physical and Chemical Properties - Both silica micro powder and quartz powder are fine materials with particle sizes typically below 1 micron, but they differ in physical properties; silica micro powder is lighter and less dense, while quartz powder is denser [7] - Chemically, silica micro powder is a form of SiO2 with a non-crystalline structure and many active surface groups, whereas quartz powder is made from crushed crystalline quartz [7] Group 4: Application Fields - Silica micro powder is widely used in electronics, optics, ceramics, cosmetics, coatings, and plastics to enhance material stability, reduce costs, and improve processing performance [7] - Quartz powder is primarily used in glass, ceramics, cement, building materials, and metal surface coatings due to its high hardness and chemical stability [7]