The entire R&D, manufacturing, and testing process for our photovoltaic glass is conducted in strict accordance with the following standards. All technical specifications and performance parameters are fully traceable and verifiable:

• GB 15763.2-2005 Safety Glazing Materials in Building — Part 2: Tempered Glass
(Defines the fundamental mechanical and safety requirements for photovoltaic tempered glass, including impact strength and fragmentation characteristics.)

• GB/T 30984-2014 Glass for Solar Photovoltaic Applications
(Specifies the fundamental requirements for photovoltaic glass, including product classification, technical requirements, and test methods.)

• GB/T 30984.1-2015 Glass for Solar Applications — Part 1: Ultra-Clear Patterned Glass
(Specifies the optical properties, appearance quality, and chemical composition requirements for ultra-clear low-iron patterned glass.)

• GB/T 2680-2021 Building Glass — Determination of Visible Light Transmittance, Direct Solar Transmittance, Total Solar Energy Transmittance, Ultraviolet Transmittance, and Related Glazing Factors