ASLAN PHARMACEUTICALS ANNOUNCES THE MOVE OF ITS PRIMARY LISTING TO NASDAQ AND DELISTING FROM TAIPEI EXCHANGE

Singapore, July 17, 2020 – ASLAN Pharmaceuticals (Nasdaq: ASLN, TPEx:6497), a clinical-stage immunology and oncology focused biopharmaceutical company developing innovative treatments to transform the lives of patients, today announced further progress towards a primary listing on the Nasdaq Global Market (“Nasdaq”) and receipt of a Notice of Delisting from the Taipei Exchange (“TPEx”), an expected step in the TPEx delisting process. The company will retain its listing of American Depositary Shares (“ADS”) on Nasdaq in the United States and existing holders of ADS do not need to take any action as a result of this announcement.

Dr Carl Firth, Chief Executive Officer, ASLAN Pharmaceuticals, said: “Changing the company’s primary listing to Nasdaq will enhance our ability to raise capital given the greater flexibility afforded to us when we are no longer subject to TPEx regulations. 90 percent of trading in our securities the last six months has taken place on Nasdaq and we have not raised any capital in Taiwan since 2017. This move is also in line with the shift in our commercial focus towards the U.S. market as we prepare to initiate a Phase 2b study of ASLAN004 in atopic dermatitis in 2021.”

ASLAN expects its ordinary shares to cease trading on TPEx on August 25, 2020, and TPEx regulations will cease to apply shortly thereafter. Holders of the company’s ordinary shares can apply before September 25, 2020, to convert their shares into ADS and it is anticipated that the conversion will be completed before the end of October.

ASLAN is currently recruiting patients into the second of three dose cohorts of its Phase 1 randomised, double-blind, placebo-controlled multiple ascending dose study of ASLAN004 in moderate to severe atopic dermatitis. Recruitment of patients into the study is expected to restart in August as restrictions put in place by the Singapore government to contain the spread of COVID-19 are gradually lifted. Sites in Australia and the U.S. are also preparing to come online to accelerate recruitment. The company expects to announce interim, unblinded data from the study in the fourth quarter of 2020.