In 2025, the prestigious U.S. testing and certification organization RETC (Renewable Energy Test Center) announced the "2025 PV Module Index Report," awarding LONGi the "Overall Highest Achiever" title for the seventh consecutive year. This award is given only to companies that have achieved outstanding ratings in all three areas of reliability, performance, and manufacturing quality. RETC's tests are conducted under stringent standards that exceed IEC specifications and are applied to major module products worldwide. Of the products evaluated this year, only 13% met the standards, but LONGi excelled in each category. In reliability testing, it received high ratings for damp heat (DH), PID, temperature cycling (TC), and mechanical load (SDML). In performance testing, it recorded top-class results in LETID, LID, temperature coefficients, and PAN file performance. LONGi's seven consecutive awards demonstrate its leadership in product development, manufacturing, and quality control, reaffirming its role as a driving force in the high-quality development of the global solar industry.

In June 2025, LONGi was recognized as a "Top Performer" for the eighth consecutive year in the "2025 PV Module Reliability Scorecard" announced by KiwaPVEL. KiwaPVEL is a globally recognized independent testing organization, and this certification demonstrates the highest standards of product reliability and performance in the industry. This time, LONGi achieved excellent results in all tests, including Temperature Cycle Test (TC), Dynamic Mechanical Load (MSS), PID Test, Light-Induced Degradation and High-Temperature Induced Degradation Tests (LID + LETID), and PAN file performance evaluation. Notably, in 2025, only 21 products worldwide were selected as "Top Performers" across all tests, and only 3 products were chosen for PAN performance, with LONGi being one of them. This achievement reflects LONGi's continuous improvement in technological innovation and manufacturing quality, and it is a testament to its commitment to providing more stable, high-efficiency, and sustainable solar solutions to customers around the world.

LONGi has been recognized as the first in the solar power industry to achieve the "Lighthouse Factory + Zero Carbon Factory" certification at the "Shanghai Climate Week 2025" to be held in April 2025, with its Jiaxing factory in Zhejiang Province, China, receiving the "Climate Lighthouse 2025 Model Award." In addition to the WEF's "Lighthouse Factory" certification, the factory has also obtained carbon-neutral certification based on ISO 14068. By utilizing automation, IIoT, big data, and 5G technology, it has advanced production and achieved decarbonization through the use of renewable energy and carbon credits. This has established a smart and sustainable manufacturing model that involves the entire supply chain, with expectations for spillover effects into other industries. Furthermore, the Jiaxing factory promotes the use of renewable energy through the installation of rooftop solar power facilities and the utilization of Green Energy Certificates (GEC). With advanced energy management and environmentally conscious operations, it has set a new standard for decarbonized factories that combine practicality and sustainability. Moving forward, LONGi will continue to advance technological innovation and the practice of social responsibility as a global leader balancing responses to climate change and the construction of sustainable industries.

LONGi has achieved the highest rating of AAA for 21 consecutive periods in the "PV ModuleTech Bankability Ratings" announced by the UK-based Informa, up to the first quarter of 2025. This is the longest record in the market and demonstrates the company's strong financial foundation, supply capacity, and research and development capabilities. In particular, it has set a world record for conversion efficiency with its heterojunction back contact (HIBC) technology and tandem solar cells, showcasing its leadership in technology. Products equipped with BC technology, such as Hi-MO X10 and Hi-MO 9, have secured large-scale projects worldwide, with cumulative shipments of BC modules exceeding 30 GW. The company will continue to contribute to the realization of a sustainable energy society.

LONGi announced that in April 2025, it set a world record for conversion efficiency at 34.85% for tandem (multi-junction) solar cell technology using perovskite and crystalline silicon, as well as 27.81% for single-junction crystalline silicon solar cells. With this achievement, LONGi has secured a double world record in both categories, once again demonstrating its technological innovation at the forefront of the industry. The achievement of this world record in conversion efficiency for perovskite/silicon tandem solar cells marks the third time since reaching 33.9% in November 2023 and 34.6% in June 2024. Additionally, in the traditionally used single-junction crystalline silicon solar cells, this record achievement follows the industry's first update in five years to 26.81% in November 2022, and subsequent updates to 27.09% in December 2023 and 27.3% in May 2024, marking the fourth consecutive record update over four years. The record updates are not the goal but a milestone towards the future. LONGi's research and development team will continue to pursue innovative research and development with the mission of "creating a world of green energy using solar energy."

LONGi has been awarded the highest rating of AAA (Triple-A) for the 20th consecutive time in the "PV ModuleTech Bankability Rating" Q4 2024 edition by Informa PLC (headquartered in the UK). While other companies have achieved AAA ratings for a maximum of 8 consecutive periods, LONGi has maintained this top rating since Q1 2020 due to its consistently excellent production capacity, supply capability, technological strength, and financial soundness. This rating was developed by the PV Tech analysis team of Solar Media (which will be under Informa starting in 2024) as a result of five years of research, and it was established in October 2019 as a comprehensive method for assessing the bankability of solar module manufacturers (solar power panels). Bankability consists of two components: "Manufacturing Score" and "Financial Health Score," with the Manufacturing Score further divided into three scores: "Supply Capability," "Production Capacity," and "Technology." This evaluation is considered important by investors and stakeholders who aim to make decisions based on actual performance data from solar power plant projects.

LONGi's new product "Hi-MO X10" features the N-type BC technology "HPBC 2.0," which was evaluated for power generation performance under four shading conditions in the "Photovoltaic modules - Shading resistance classification test" conducted by TÜV Rheinland (Germany), achieving ratings of "A+" and "A." The HPBC 2.0 technology exhibits bypass diode-like functionality at the cell level through soft breakdown design, mitigating the effects of partial shading and preventing output loss, while also reducing localized overheating and minimizing the risk of failure or fire. Rooftop solar power systems are prone to the impacts of fallen leaves, dirt, snow, and surrounding buildings, which can lead to decreased power generation and module damage, but the Hi-MO X10 addresses these issues. The "Hi-MO X10" offers output, conversion efficiency, and reliability that surpass TOPCon products, while also boasting an excellent appearance. With its partial shading response capabilities, it ensures long-term stable power generation and high safety, contributing to reductions in BOS costs and LCOE, making it a product that can be proposed comprehensively.

LONGi (LONGi Solar Technology Co., Ltd.) was awarded the "Gold" medal by EcoVadis, an international sustainability assessment organization, in January 2025, for its high ratings in environmental, labor and human rights, ethics, and sustainable procurement efforts, placing it in the top 5% of companies worldwide. EcoVadis's assessment is based on 28 indicators across four areas: environment, labor and human rights, ethics, and sustainable procurement, evaluating companies' policies, practices, and results. This assessment method complies with international sustainability standards and is widely recognized. LONGi was recognized for its advanced environmental management, fair business practices, and sustainable procurement systems. LONGi aims to realize a sustainable society through solar energy and is also committed to CSR activities. It supports the UN SDGs and participates in climate change initiatives such as RE100 and SBTi. Moving forward, it will continue to promote sustainable development and strengthen its efforts in collaboration with industry partners. LONGi's Japanese subsidiary has made the "Gold" evaluation results public through JPEA (Japan Photovoltaic Energy Association) to enhance the transparency of its CSR activities.