Jointly invested by K& M Technologies and Dongho Ultrasonic Machinery Co., Ltd in 2021, this company is the global operator for Dongho Brand ultrasonic welding machines, including marketing, brand promotions, sales and distribution arrangement, etc.

Combining both companies advantages, Sincere Sonics will provide sincere service with high quality products to global customers. Sincerity is always our business principle.

We are not selling products, we are providing solutions to solve your problems and to help you prosper your business worldwide.

Join us, and be our regional partner in your country, we will make great benefit together.