Through the analysis of the above operating capacity, we know that the inventory turnover rate and receivables turnover rate of Maoming Petrochemical Shihua declined significantly in 2018, indicating that Maoming Petrochemical Shihua's capital operation ability is not strong. One is inventory. The inventory balance of Maoming Petrochemical Shihua has increased year by year, but the proportion of its inventory depreciation reserve has decreased year by year. The second is accounts receivable. Analysis of Maoming Petrochemical Shihua's financial data for the past three years shows that the receivables turnover rate has decreased year by year. Although there was a slight increase in 2017 but a sharp decline in 2018, Maoming Petrochemical Shihua's operating capacity was not strong.