 LITTLE ELM, Texas--BUSINESS WIRE--Retractable Technologies, Inc. NYSE American: RVP reports that its operating income was 23.4 million in the first quarter of 2021, compared to operating income for the same period last year of 481 thousand. In comparison, the annual operating income for the prior two years was 24.1 million in 2020 and 3.0 million in 2019. During the first quarter of 2021, sales to the U.S. government were 37.8 million, representing 75.5 of the 50.1 million in first q 