maintenance shutdown. In addition, the steam selling price has decreased following the decrease in price of natural gas. • The gross profit for Very Small Power Producer (VSPP) and other decreased by Baht 4

%) Cost of sales of goods and rendering of services Cost of raw materials - Natural gas 2,255 1,948 2,026 4% (10%) 4,395 3,974 (10%) - Steam 63 70 98 40% 56% 188 168 (11%) - Water 39 41 38 (7%) (3%) 73 79 8

1,034.45 Baht/ton in 2017, primarily due to a decrease in natural gas price as our steam price is generally adjusted to reflect changes in natural gas price. Electricity Sales to EDL • Electricity sales to

(SPP+VSPP) Steam 1,314 1,653 546 1,881 1,933 1,885 1,865 1,760 1,701 115 113 111 5,175 5,459 4,243 Q3/59 Q2/60 Q3/60 -18% YoY -22% QoQ -7% -26% YoY -28% QoQ Natural gas (IPP) -10% Electricity (IPP

as a result of higher electricity and steam sales volume which impacts the higher in total revenue while the average natural gas price per unit decreased by 4%. Gross profit of Small Power Producer

Baht 1,027.69/ton for the six months ended June 30, 2017, primarily due to a decrease in natural gas price as our steam price is generally adjusted to reflect changes in natural gas price. Other sales

hourly operating maintenance cost of the Sriracha Power Plant. Electricity (SPP+VSPP+Other) Steam Natural gas (IPP) Electricity (IPP) Revenue (THB million) Natural gas (SPP) Maintenance fee Other raw

) (9.1%) Sales of steam (IU) 2.5 1.4 (1.1) (44.0%) Sales from Natural Gas Power Plant 422.3 668.6 246.3 58.3% Sales of electricity - FiT, base tariff and Ft 70.1 68.1 (2.0) (2.9%) FiT Premium 6.0 6.0

-on-year from Baht 1,076.28/ton for 9M’2016 to Baht 1,035.43/ton for 9M’2017, primarily due to a decrease in natural gas price, as the steam price is generally adjusted to reflect the changes in natural

increased by Baht 37 million or 2% due to higher electricity and steam sales price, which was in line with the increase in natural gas prices. However, the rise in natural gas prices with constant Ft rate