Access Bio was founded in 2002 in New Jersey, USA and listed on KOSDAQ in May 2013 as an in-vitro diagnostics company, with its core business centered on developing, manufacturing and selling rapid diagnostic tests (RDTs) for infectious diseases including malaria, HIV, influenza, dengue and COVID-19.
Before the pandemic, malaria rapid test kits accounted for more than 80% of revenue, and these products are sold almost entirely for export to lower-income regions in Africa and Southeast Asia through tenders run by organizations such as the WHO and UNICEF, which limits profitability.
In 2019 Woorideul Pharm (now Pharmgen Science) acquired management control and became the largest shareholder, a position it still holds with roughly a 24% stake.
During the COVID-19 pandemic the company obtained five separate US FDA Emergency Use Authorizations covering antigen, self-test, molecular (RT-PCR) and antibody diagnostics, which rapidly shifted its revenue mix toward COVID-19 test kits.
More recently the company has pursued product diversification built on its high-sensitivity CareSuperb diagnostic platform, following its standalone COVID-19 test with a combined COVID-19/flu antigen home test.
In January 2026 the board approved a KRW 57 billion investment to acquire an 80.2% stake in aesthetic company RF Bio, expanding into polynucleotide (PN)/PDRN-based skin boosters and hyaluronic acid (HA) fillers.
Alongside this, the company invested KRW 15 billion in medical aesthetics operator AAC Holdings and KRW 5 billion in joint venture AACG, aiming to build a wellness platform spanning diagnosis, procedures/care, monitoring and data.
On the competitive front, domestic diagnostics peers such as Humasis, SD Biosensor, Sugentech and Labgenomics face similar post-pandemic revenue restructuring pressures.
Its domestic manufacturing subsidiary Access Bio Korea, based in Goryeong-gun, North Gyeongsang Province, was dissolved in April 2026, reflecting a shrinking domestic production footprint.