[1] In June 2021, Aponso moved to the United States to play in the Minor League Cricket tournament.
[4] He was the leading wicket-taker for Ragama Cricket Club in the 2018–19 Premier League Tournament, with 47 dismissals in nine matches.
[6] Aponso took 31 first-class wickets at an average of 20.9 in the 2015 season, and was rewarded with a place in the Sri Lanka A squad to New Zealand, later that year.
After series of good performances in domestic arena in 2015 and 2016, he had to wait until Sri Lanka's main spinner Rangana Herath retired from limited-overs cricket.
[15][16] In November 2019, he was named in Sri Lanka's squad for the 2019 ACC Emerging Teams Asia Cup in Bangladesh.