Guangzhou Doppler Electronic Technologies INC (stock code: 301528) was established in 2008, based in the industrial
non-destructive testing industry. It is a professional provider of industrial non-destructive testing equipment and testing
solutions, committed to building a world-class non-destructive testing brand. The company's main products include
industrial ultrasonic phased array testing equipment, automated testing equipment, ultrasonic transducers, customized
testing analysis software, and other testing supporting components, and can provide customers with a full chain of
ultrasonic non-destructive testing products. The company has been approved as a national level “small giant”
enterprise, a national high-tech enterprise, and a Guangzhou innovation benchmark enterprise (technical benchmark). It has established multiple provincial and municipal research and development platforms and successfully landed on
the Shenzhen Stock Exchange Growth Enterprise Market at the end of August 2023, earning it the title of "the first
domestic ultrasonic non-destructive testing stock". DOPPLER was the first to achieve the localization of ultrasonic phased array instruments and ultrasonic phased array
probes, breaking the foreign barriers. The first high-performance ultrasonic phased array detector successfully
developed in China has been recognized as a national key new product.