What are the listed companies that produce styrene?

The State Council decided to introduce ten measures to further increase its support for grain production. Listed companies in grain production have benefited from the state's emphasis on grain production in recent years and have continuously increased their capital investment in grain production. The grain output has increased year after year, mainly because the sown area and yield level of grain have increased year by year, the proportion of high-yield crops in the grain planting structure has increased, agricultural investment has increased, the scientific and technological content has improved, and the overall meteorological conditions are better. In addition, a series of policies to benefit farmers are implemented, such as direct grain subsidy, improved seed subsidy, agricultural machinery purchase subsidy, incentive mechanism for large grain-growing counties and grain protection price policy. List of listed companies in grain production: Beidahuang (600598): Ronghua Industry (6003 1 1): wholesale and retail of starch and its by-products; Agricultural Planting and Breeding Jinjian Rice Industry (600 127): Developing, producing and selling grain and oil and its products. Xinnongkai (600359): Agricultural planting, production, processing and sales of agricultural and livestock products Longping Hi-Tech (000998): New hope of rice seed production and sales (000876): production and sales of feed, raw material additives and agricultural and sideline products. Denghai Seed Industry (00204 1): Yasheng Group, which produces rice seeds and sells self-propagating seeds.