Korea Republic lie second in Group B behind Japan on goal difference, while Macau are bottom after suffering their second consecutive defeat.

The two group winners will gain direct qualification to the 2020 Finals, with the second placed teams meeting in a play-off to determine the third side through from the East Zone.

China struggled to find a way past Mongolia in the first half but turned on the power in the second half to register a 3-0 win while Chinese Taipei dominated from start to finish as they defeated Hong Kong 4-1.

The Groups A and B winners will gain direct qualification to the 2020 Finals, with the second placed teams meeting in a play-off to determine the third team through from the East Zone.

Japan showed their goal scoring prowess as Tomoki Yoshikawa, Yuki Murota and Minami Kato each scored hat-tricks for the three-time AFC Futsal Championship winners.

The two group winners will gain direct qualification to the 2020 Finals, with the second placed teams meeting in a play-off to determine the third team through from the East Zone.

Oman join Kuwait, Bahrain, Lebanon and Saudi Arabia as the representatives from West Asia for Turkmenistan 2020.

Both teams went into the playoff after having finished third in their respective groups and neither was willing to take risks in the first half.

The win saw defending champions Thailand top the Group A standings heading into the semi-finals.

The regional tournament also serves as the ASEAN Zone Qualifiers for the AFC Futsal Championship Turkmenistan 2020, with the top three teams advancing to the Finals next February.

The regional tournament also serves as the ASEAN Zone qualifiers for the AFC Futsal Championship Turkmenistan 2020, with the top three teams advancing to the Finals next February.

Thailand will face Myanmar on Wednesday to decide the group winners, while Timor-Leste and Cambodia will be aiming to end their campaigns on a high.

The 0-0 draw took Vietnam and Indonesia to four points Australia have three after defeating Malaysia 6-4.

The regional tournament also serves as the ASEAN Zone qualifiers for the AFC Futsal Championship Turkmenistan 2020, with the top three teams advancing to the Finals next February.