LONGi certified by China Quality Certification Center (CQC) as a Witnessed Manufacturer's Testing (WIT) laboratory

CQC provides assessments and certifications to photovoltaic manufacturers through cooperation with laboratories. With the CQC WIT certification, LONGi can now implement photovoltaic module certification tests based on the international standards of IEC 61215 and IEC 61730 in its own laboratory. Tests will be executed by LONGi Test Engineers and independently witnessed by CQC Project Engineers. LONGi laboratory will issue the test reports, which will be jointly signed by LONGi and CQC. The use of manufacturer’s laboratory testing facilities with independent eyewitness verification will reduce project cycle time in sample delivery, improve the efficiency of photovoltaic product certification, and increase the competitiveness of the product.

"LONGi and CQC are long-term strategic partners, and the WIT (Witnessed Manufacturer's Testing) certification is validation of the high management level and testing ability of LONGi's laboratory. This is also validation of the laboratory's compliance with IEC International Standards and CQC Recognition Rules. We look forward to working with LONGi to derive their advantages in technological innovations in the photovoltaic field, consolidate the quality foundation work such as standards, testing, certifications, and promote the high-quality development of the photovoltaic industry in China." Ms. Xing Heping, CQC Marketing Director and Head of New Energy Department said at the ceremony.

Dr. Lv Jun, Vice President of LONGi Solar, said, "LONGi R&D laboratory successful receipt of CQC WIT certification is strong recognition of LONGi's comprehensive facilities and R&D capabilities. During the entire evaluation process, the professional technical team of CQC provided valuable support to LONGi. In addition to certification testing, LONGi facilities laboratories have pivotal roles in product quality control and the introduction of new materials. The acquisition of CQC WIT certification proved that LONGi has strong product quality control capabilities for our customers. "

In recent years, LONGi has continuously promoted the upgrade of the industry with breakthrough technologies. LONGi factory laboratories located in every production base are pivotal in product development, manufacturing and many aspects of quality control. The company’s laboratories in Kuching, Malaysia, Quzhou, Zhejiang Province and Taizhou, Jiangsu Province have successively obtained "Laboratory Qualification" from authoritative third-parties. LONGi will enhance its R&D capabilities and bring more high-quality photovoltaic products to the market quickly, to promote the healthy and sustainable development of the photovoltaic industry with technological innovations.