Where is the 90-day report office located at Chaengwattana?

The 90-day report office is located in Building B of the government complex on Chaengwattana Road. Inside the immigration offices, you will find it in section A. After entering the main section, head to the right and then take another right. It's important to first obtain a queue number from the counter near the entrance. Additionally, you can schedule an appointment online to skip the queue.