Poomjaeng was narrowly beaten 6–5 by Michael White in the first round of the International Championship. He defeated Chris Melling 6–4 and Ryan Day 6–2 at the UK Championship and recovered from 5–0 down against Mark Joyce to win 6–5 and reach the fourth round. He potted just 13 points in the first five frames against Mark Selby and there was no comeback this time as he lost 6–1. A pair of 4–1 victories over Craig Steadman and Robert Milkins saw Poomjaeng reach the third round of the Welsh Open, where he was beaten 4–3 by Yu Delu. Poomjaeng lost 5–4 to Ryan Day in the first round of the China Open, but saw off Eden Sharav 10–4 and Robin Hull 10–5 to reach the final qualifying round for the World Championship. He fell just short of playing at the Crucible again as he lost 10–9 to Mitchell Mann.