S.D. Codified Laws § 1-16G-5
Any repayment of loans made and any interest thereon shall be receipted into the revolving economic development and initiative fund and all money in the fund is hereby appropriated for the purposes of making grants and loans as provided in §§ 1-16G-3 to 1-16G-11, inclusive. The Board of Economic Development may promulgate rules pursuant to chapter 1-26, to make grants and loans from the revolving economic development and initiative fund, and may establish criteria for the qualification, application, payment, and repayment of funds for such projects.
The board may also make loans from the revolving economic development and initiative fund to the South Dakota Economic Development Finance Authority for the purposes of assisting in the credit enhancement requirements of bond issues, notes, loan guarantees and bond insurance. Any excess in the capital reserve fund of the economic development finance authority on June thirtieth of each year shall revert to the revolving economic development and initiative fund for the purposes of principal and interest reduction.
SDCL 1-16G-5