LONGi is a leading manufacturer of high-performance solar panels, with a strong market position and a global presence in over 30 countries. LONGi Solar is recognized as a top-tier solar panel manufacturer, and is considered a reliable and high-quality supplier of solar panels. The term "Tier 1" is used in the solar industry to refer to solar panel manufacturers that are vertically integrated, meaning they produce the majority of their own solar cells and have control over their supply chain.