RFsemiTechnologies
알에프세미 · 096610
Information Technology Semiconductors · KOSDAQ
Market cap US$37.4M (₩51.6B)
Overview
RFsemiTechnologies makes the tiny semiconductor chips that sit inside microphones, converting sound into electrical signals, and protective chips that shield smartphone circuits from sudden electrical surges.
Its microphone chips supply devices such as mobile phones, earphones, Bluetooth headsets, AI speakers, and surveillance cameras, while its surge-protection chips go into smartphones and other electronics; the company is listed on KOSDAQ, South Korea's tech-focused small-cap exchange. The large majority of its revenue comes from the microphone chip line, with surge-protection chips making up most of the remainder, plus a small LED lighting segment.
Summary is AI-generated and may contain errors · figures from DART filings
Financials
Source: DART · FY ending Dec · latest FY2025Revenue
- FY2023US$19.6M
- FY2024US$17.7M
- FY2025US$17.7M
Operating profit
- FY2023−US$12.5M
- FY2024−US$1.9M
- FY2025US$1.3M
Net income
- FY2023−US$31.6M
- FY2024−US$2.1M
- FY2025US$1.2M
Key ratios (FY2025)
Why it matters
The company also operates its own six-inch semiconductor wafer fabrication facility and offers foundry services, processing wafers on behalf of other chip designers, a capability it states is rare among domestic peers.
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