Yeuk Hung Cheng

Echo Electronics Co. Ltd. is a Chinese company that manufactures and assembles consumer electronic products. The private company is based in Hong Kong, Hong Kong.

Edax LLC manufactures x-ray instrumentation and systems for crystallographic microanalysis applications. The firm's products include energy dispersive x-ray microanalysis, electron backscatter diffraction, and mirco x-ray fluorescence systems. It develop systems for customers in the semiconductor, energy, forensics, metal, materials science, and mineralogy sectors. The firm also offer technical support, network installation, software licensing, training, and application support services. The company was founded in 1962 and is headquartered in Mahwah, NJ.