NL REPORTS FIRST QUARTER 2021 RESULTS

b"Dallas, Texas, May 05, 2021 (GLOBE NEWSWIRE) -- NL Industries, Inc. (NYSE: NL) today reported net income attributable to NL stockholders of $13.3 million, or $.27 per share, in the first quarter of 2021 compared to net income attributable to NL stockholders of $1.9 million, or $.04 per share, in the first quarter of 2020.\xc2\xa0 NL results include an unrealized gain of $6.4 million in the first quarter of 2021 related to the change in value of marketable equity securities compared to an unrealized loss of $12.1 million in the first quarter of 2020.\nCompX net sales were $35.9 million in the first quarter of 2021 compared to $32.3 million in the first quarter of 2020.\xc2\xa0 CompX net sales increased primarily due to higher Marine Component sales to the towboat market and to a lesser extent higher Security Products sales.