The action concerns the support of businesses regardless of the sector affected by the pandemic in the form of a repayable advance. The final beneficiaries will be Small and Medium-sized Enterprises, regardless of their legal form, legally operating in the country where Activity Codes (SMRs) are included in the list of those affected by the COVID-19 pandemic. Undertakings active in the primary production of agricultural products and in the fisheries and aquaculture sector shall not be eligible.For the period until 31 December 2021 an interest-free grace period shall be provided during which the beneficiary undertaking shall not be obliged to repay any portion of capital or interest. At the end of the grace period, the amount of aid received shall be repaid in 40 equal monthly instalments, each of which will be paid on the last day of the month. The amount of the aid shall be charged at the reference rate, the base rate fixed by the European Commission for Greece and in force on the date of entry into force of this Decision, in accordance with the latest Communication 2008/C 14/02 (C 14/6 of 19.1.2008), increased by 109 basis points. It should also be noted that the aided undertaking is obliged to maintain until 31 October 2020 the number of employees it employed as of 31 March 2020. Finally, only 70 % of the aid may be reimbursed if the company’s turnover, one year after receipt of the aid, is reduced by 70 % or more in relation to the level of reference turnover or gross income (b) reimbursement of only 60 % of the aid, for undertakings employing more than 20 employees on 31 March 2020, provided that they maintain on average the number of employees employed on 31 March 2020; on the basis of the data of the ERGANI system, up to 31 March 2021.The aid granted to enterprises concerns only Regulation (EC) No 1407/18.12.2013 of the Commission of the European Communities on the application of Articles 107 and 1089 of the Treaty on the Functioning of the European Union to De Minimis.