during the year and also the collection of trade and other accounts receivable. Total liabilities As at 31 December 2017, the Group reported total liabilities at THB 83.1 million, decreased by THB 54.4
days of inventory = Average inventory / (Cost of sales of goods / Number of days in the period1) Collection period (days) = Average trade account receivables before allowance for doubtful account
according to the credit terms. As a result, the trade payables increased. Income tax payable increased by 24. 0 MB, representing an increase of 81. 9% because The Company's collection from trade accounts
PP&E of THB 429.40 million. In 2018, the consolidated return on asset was 5.86% times, lower than 2017 at 9.94%. Trade and other Receivable In 2018, the Company and its subsidiaries recorded allowance
allowance for doubtful accounts was at acceptable level of 3.95% of total trade receivables. The average collection period of the Company and its subsidiaries was 19 days in 2019, decreased from 21 days in
acceptable level of 3.49% of total trade receivables. The average collection period of the Company and its subsidiaries was 20 days in 2017, slightly decreased from 21 days in 2016. The account receivable
days in the period1) Collection period (days) = Avg. trade account receivables before allowance for doubtful account / (Total revenue from sales / Number of days in the period 1 ) Accounts payable days
days of inventory = Avg. inventory / (Cost of sales of goods / Number of days in the period1) Collection period (days) = Avg. trade account receivables before allowance for doubtful account / (Total
liabilities Number of days of inventory = Average inventory / (Cost of sales of goods / Number of days in the period1) Collection period (days) = Average trade account receivables before allowance for doubtful
of inventory = Average inventory / (Cost of sales of goods / Number of days in the period1) Collection period (days) = Average trade account receivables before allowance for doubtful account / (Total