Group 1 - The core point of the news is that China Silver Technology (HK0515) experienced a significant stock price drop of 81.74%, trading at 0.084 HKD after previously surging over four times in less than a month [1][2][5] - The company's market capitalization is reported at 95.197 million HKD, with a trading volume ratio of 17.82, indicating high trading activity [2][3] - The stock's price decline is attributed to a massive correction following an extraordinary price increase, which is characteristic of stocks that have experienced rapid gains [2][5] Group 2 - China Silver Technology primarily engages in two business segments: printed circuit board (PCB) manufacturing and LED lighting products [5] - The PCB business has shown stable growth since the company was listed in 2006, and it has established a presence in various cities in mainland China for LED streetlight projects [5] - The company serves a diverse clientele, including multinational corporations and large Chinese brands, with its PCB products used in consumer electronics, computers, communication devices, and automotive electronics [5]

又见闪崩。 A股市场窄幅震荡 A股市场今天(6月5日)上午窄幅震荡，主要指数和板块多数波动不大。港股整体继续上涨，恒生指数盘中涨幅一度超过1%。 异动个股方面，港股中华银科技放量闪崩，股价跌超80%。该股此前在不到一个月的时间里股价飙升超4倍。 新股优优绿能（301590）盘中涨幅一度达到99.64%。 招股资料显示，优优绿能是专业从事新能源汽车直流充电设备核心部件研发、生产和销售的国家高新技术企业，主要产品为15KW、20KW、30KW和 40KW充电模块，主要应用于直流充电桩、充电柜等新能源汽车直流充电设备。公司着眼于新能源汽车对充电速率、环保性、便利性、安全性、可靠性的 核心需求，产品始终沿着大功率、高效率、高功率密度、宽电压范围、高防护性的技术发展路线，可批量供应最大功率为40KW、最高转换效率为96%、 最高功率密度为60W/in3、恒功率输出电压范围为300V至1000V的充电模块，以及防护等级为IP65的充电模块，助力新能源汽车实现快速、环保、安全、 便捷的电力补能，间接推动新能源汽车充换电领域的快速发展。 A股市场今天上午整体窄幅震荡，主要指数波动均不大。 | 行情 | 资金净流入 | 涨跌分 ...