of Baht 8,149 million. It results from the increase of trade and other receivables and unbilled receivables. The quality of assets Trade account receivables Unit: Million Baht Consolidated financial

mainly from trade accounts receivable and unbilled receivables. The quality of assets Trade account receivables Unit: Million Baht Consolidated financial statements 31 December 2019 31 December 2018 Trade

increase of Baht 24.73 million or 5.28 % increase. The significant increase was the current asset of unbilled completed work value of Baht 33.07 million since the work progress has not yet been achieved as

equivalents 35.22 91.98 (56.76) (61.71) Trade and other receivables 208.40 165.67 42.74 25.80 Unbilled receivables 273.72 88.85 184.87 208.08 Inventories 135.92 2.52 133.40 5,299.93 Refundable tax - 17.06

) (38.73%) Temporary investments 59.90 40.65 19.25 47.36% Trade and other receivables 255.88 263.44 (7.56) (2.87%) Unbilled receivables 286.04 86.38 199.66 231.14% Inventories 308.56 31.94 276.62 866.06

. The decrease was mainly from trade accounts receivable, unbilled receivables and inventories. The quality of assets Trade account receivables Unit: Million Baht Consolidated financial statements 31

64.06 212.68 (148.62) (69.88%) Temporary investments 184.42 59.90 124.52 207.88% Trade and other receivables 234.93 255.88 (20.95) (8.19%) Unbilled receivables 462.23 286.04 176.19 61.60% Inventories

Assets Current assets Cash and cash equivalents 149.50 212.68 (63.18) (29.71%) Temporary investments 40.83 59.90 (19.07) (31.84%) Trade and other receivables 323.19 255.88 67.31 26.31% Unbilled receivables

the increase of trade receivables and unbilled receivables. The quality of assets Trade account receivables Unit: Million Baht Consolidated financial statements 31 March 2018 31 December 2017 Trade

and cash equivalent 1,554.7 1,286.2 268.5 20.9 Trade receivables 1,526.6 2,297.0 (770.4) (33.5) Unbilled receivables 544.2 434.2 110.0 25.3 -3- Assets Items that has significant changes Balance by