On 27 April 2021, SK FSC said its chairman took part in short selling mock testing to resume trades.

• Financial investment-related entities and securities houses also participated, to carry out a final test to ensure normal operation of related computerized systems.
• Mock testing covered the entire process, with particular focus on compliance with obligation to store loan transaction information and order submission.
• SK FSC stressed the importance of checks, to avoid inconveniencing investors, and stock exchanges will provide round-the-clock related support to brokers until 3 May 2021.