Shoring Up Personal Protective and Lifesaving Indispensable Equipment Stockpile Act or the SUPPLIES Act This bill establishes a temporary grant program to assist small businesses in producing covered goods (e.g., ventilators, surgical masks, and hand sanitizer) that are needed to address the national emergency related to COVID-19 (i.e., coronavirus disease 2019). A grant recipient must prioritize the domestic sale of covered goods and refrain from selling such goods at a price that grossly exceeds the average price for the 90-day period prior to January 31, 2020.