This document provides information about Thailand's upcoming auction of 1800 MHz spectrum licenses for mobile telecommunications services. It outlines the key objectives of the auction as being to efficiently assign spectrum in a way that promotes market competition, improves service quality and reduces costs for the public. The document provides background on Thailand's economy, telecom market and regulations. It describes the licenses being auctioned, the application and licensing process, and the auction methodology and rules. The overall purpose is to inform potential bidders on the spectrum licensing process for 1800 MHz bands in Thailand.