Dear Kh. Teerapat/Kh.Salin,
Based on discussion with our local responsible person and counter party, a delayed on payment mainly due to lack of legal documentation.
For China entities,they need legal documents for these outstanding balance to submit to China tax bureau to obtain their approval for payment,
without tax bureau approval the payment will be prohibited.
However, we follow up the issue and there is a possibility that it will be settle in November.