This compared with average 5.05 billion baht forecast from 12 analysts polled by Reuters, and 3.57 billion baht a year earlier.
Third-quarter sales rose 10% to 122 billion baht, mainly due to growth of 11% from the company's foreign operations, while domestic sales rose 7% from a year earlier, the company said in a statement.
International operations made up 62% of third-quarter sales, with 38% coming from Thai operations.