1949--1959
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<p><strong>1948.12.23，</strong>The 136th Division of the 46th Army of the Northeast Field Army of the Chinese People's Liberation Army liberated the Daliangzi area, and Dagu Chemical was liberated. The new China was waiting for the new, and the company was revitalized under the light of the new society.</p>
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<p><strong>1951，</strong>The trademark of “Red Triple Crystal” was officially launched and continues to this day, and has now been recognized as a “Famous Trademark of China” and a “Famous Trademark of Tianjin” brand.</p>
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<p><strong>1953-1957，</strong>Under the leadership of the Party, the enterprise has determined the development route of marine chemical industry, which is mainly to develop chlor-alkali series products, and the scale of production has been rapidly developing and expanding by tapping the potentials for renovation and innovation. The majority of the workers widely carry out the socialist labor competition for increasing production and saving, and the enthusiasm of drilling technology, learning management, and comparing energy is high, and a number of model workers emerge, which promotes the rapid development of production.</p>
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<p><strong>1958.11.14，</strong>When Vice President Zhu De inspected Tianjin, he received Plant Director Li Zhizhen and wrote an inscription for Dagu Chemical Plant (endeavor to develop the basic chemical industry to better meet the needs of the people).</p>
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<p><strong>1959，</strong>Five projects, including polyvinyl chloride, caustic soda, glacial acetic acid, calcium carbide, and six-six-six complex, were put into production, which opened a new chapter in the development of marine chemical industry of Dagu Chemical from then on.</p>
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<p><img alt="History" src="https://omo-oss-image.thefastimg.com/portal-saas/pg2024062819071070055/cms/image/c6b8ee56-e14f-46f7-815d-5a6140c37b42.png" style="width: 625px; height: 243px; max-width: none; float: none; display: block; margin-left: auto; margin-right: auto;" /></p>
