[14] En route to their second league title in a row, Haziq scored his first goal for Kasuka in a 19–0 dismantling of Panchor Murai FC.

[20] Haziq was selected for the Brunei under-21 team that will play as hosts of the 2018 Hassanal Bolkiah Trophy starting in April under Spanish coach Mario Rivera.

[23] Haziq returned to the Under-23s for the 2020 AFC U-23 Championship qualification matches held in Vietnam in March 2019,[24] then the 30th SEA Games in the Philippines from November to December 2019.

[29] Six days later, he came on as a substitute for Abdul Azizi Ali Rahman in a 1–0 win over Laos national football team at the Track & Field Sports Complex.

[30] The following month, he came on for Abdul Azizi in the second half of a 6–2 victory against Timor-Leste in the first leg of the 2022 AFF Mitsubishi Electric Cup qualifying at home.

[32][33] Haziq subsequently played in all four of the games including starts against Thailand and Cambodia, unfortunately Brunei failed to gain a single point in the whole tournament.

[37] Later that September, Haziq was selected by Brunei's interim head coach Jamie McAllister for the two-legged play-off round of the 2027 Asian Cup qualification against Macau.