The Best Yielding Agricultural Chemical Companies Researched By Dividend Yield - Stock, Capital, Investment. The chemical industry is a cyclic and growing sector of the economy. A specialized industry with lower volatility is the agricultural chemical industry. Sixteen companies are classifiable to the sector. They all have a total market capitalization of around USD 200 billion. The average P/E ratio of the agri-chemicals amounts to 19.3 and they have a dividend yield of 1.8 percent. Only eight of them pay dividends but half of the dividend stocks are recommended to buy.