Dtac urges its customers to sign a blessing e-book to pay respect and show loyalty to His Majesty the King at www.dtac.co.th/KingRamaX. The book will be later sent to the Bureau of the Royal Household.
Dtac staff will wear yellow shirts on Mondays until July as part of celebrations of the royal coronation.
In addition, the company has supported soldiers, the police and volunteers at the media centre by donating 10,000 bottles of water.