 LITTLE ELM, Texas--BUSINESS WIRE--Retractable Technologies, Inc. NYSE American: RVP reports that its operating income was 36.1 million for the first six months of 2021, compared to an operating income for the same period last year of 1.4 million, and that income applicable to common shareholders was 28.5 million for the first six months of 2021 compared to 3.7 million in the prior year. Net sales were 42.5 million for the three months ended June 30, 2021 and 92.6 million for the six m 