苏州四通恒升电源科技有限公司专注于等离子镀膜电源领域，致力于为新能源和半导体行业客户提供卓越、可靠的工业电源产品。作为国内首家推出直流脉冲电源产品的公司，其产品已在光伏制造产业得到广泛应用。公司坚持以技术创新为驱动，拥有多项核心专利。面对国内高端装备发展的广阔机遇，公司始终以客户需求为导向，及时有效地提供专业化解决方案。“融绘绿色未来，共享美好生活”是四通恒升的企业愿景。未来，四通恒升将与广大客户和合作伙伴共同创造人人悦享的美好生活。

母公司江苏东方四通科技股份有限公司成立于2001年，是一家致力于研发和生产卓越、可靠、高效工业控制电源的高新技术企业。二十多年来，公司专注于晶体生长电源、调压器、中（高）频感应电源和特种电源的研发制造，始终坚持技术创新为企业发展的源动力。公司先后被认定为国家高新技术企业、省级“专精特新”中小企业，并通过了北美NRTL、欧盟CE、ISO9001等多项高标准认证，荣获科技部火炬项目计划、市级科学技术进步奖、科技创新奖和创新型试点等奖项和荣誉。目前，公司产品已广泛应用于光伏、稀土材料、电子材料、耐热材料和金属加工等行业。

苏州克尔迈斯测试技术有限公司

Qualmax, as one of the leading providers of semiconductor and mobile device testing solutions, has always been committed to helping clients achieve their business goals.

Since its establishment in 1986, Qualmax has consistently provided tailored solutions and consulting services based on individual client needs. With professional design teams in the United States, South Korea, mainland China, and Taiwan, comprising engineers with deep expertise and practical experience in semiconductor testing applications, Qualmax also boasts a specialized team of field application engineers equipped with extensive practical experience in application testing. This enables them to provide prompt and effective technical support at the production line level.

Qualmax is dedicated to the success of our customers by being a world-class provider of innovative spring contact probe (pogo pin) and IC test socket solutions to the semiconductor testing industry. Established in 1986, Qualmax offers a wide range of spring contact probe (pogo pin), IC test socket, and services designed to address the unique challenges faced by each customer.