United Parcel Service. Inc. /zigman2/quotes/201245396/composite UPS -0.83% said Wednesday that it has enhanced its ability to produce dry ice, and its health business has partnered with freezer and refrigeration company Stirling Ultracold to provide ultra-low temperature freezers that reach a range of -20°C to -80°C. UPS will now produce 1,200 lbs. of dry ice every hour in the U.S. and Canada. These introductions are intended to aid in the storage and transport of COVID-19 vaccines when the time comes, the company said. The partnership with Stirling Ultracold is through UPS Healthcare, which handles the packaging and shipping of medical devices, labs and clinical trial logistics. UPS stock edged up 0.6% in premarket trading and has gained 47.5% for the year to date. The S&P 500 index /zigman2/quotes/210599714/realtime SPX -0.87% is up 12.5% for 2020 so far.