RN2 Technologies saw sales increase in 2020 thanks to its supply of telecom component to Chinese companies ZTE and Huawei.
The company recorded 23.8 billion won in sales and 4 billion won in operating income in 2020, a rise of 13.7% and 43.3%, respectively.
RN2 Technologies was registered as a supplier to Huawei in 2019.
A person familiar with the matter said it usually takes two to three years for suppliers to see sales from their customers have been registered as one but Huawei accelerated its procurement of components following US sanctions.
Huawei had previously procured components from Anaren of the US but is thought to have diversified its suppliers following the sanctions.
RN2 Technologies supplies couplers to ZTE and Huawei. Couplers are used to divide a single wireless signal into two using the coupling effect.
The Korean company’s main customers historically has been Samsung Electronics and ZTE. It was registered as a supplier to ZTE back in 2009 and to Samsung in 2010.
RN2 Technologies supplies termination and attenuator to Samsung.
Samsung was previously its biggest customer. But the tech giant saw its sales decline in 2020 from 2019 to lowered sales of 5G equipment. ZTE is now RN2 Technologies’ biggest customer.
RN2 Technologies use low temperature cofired ceramic technology to manufacture telecom components.
Cofired ceramic use ceramic as substrate and metals as electrode. The ceramic and electrode are cofired together on stacked films. High temperature cofired ceramic are fired at around 1,500 Celsius, and metals such as molybdenum and tungsten are used. These metals have low conductivity.
Metals such as gold and silver use low temperature cofired ceramic technology which are fired up at around 1,000 Celsius.
Meritz Securities last month said it expected RN2 Technologies to record 34.1 billion won in sales and 12.1 billion won in operating income this year. The growth will be thanks to increased investments into 5G globally this year.