Host Shahdab Yazd took on Gas Al-Janoob of Iraq in front of a packed home crowd of 6,000 fans and triumphed 3-0 (25-15, 25-21, 25-23) in a thrilling contest that saw both teams battle fiercely for every point.
Foolad Sirjan Iranian became the last semifinalist after defeating Kuwait Sporting Club 3-0 (25-21, 25-17, 25-17), leaving the Kuwaiti club winless.
In the semifinals, Shahdab will meet Pavlodar of Kazakhstan and Foolad play Indonesian side Jakarta Bhayangkara Presisi.