PTTLNG's Manager of Corporate Communications and Social Affairs, Kitipoom Tangwongpimuk, presented a tulip basket to Her Royal Highness Princess Maha Chakri Sirindhorn at Chitralada Royal Villa. This offering was made on April 2, 2026, to commemorate her royal birthday.

The gesture demonstrates PTTLNG's deep loyalty and gratitude towards the Royal Family. It also highlights the company's commitment to upholding cultural traditions and corporate social responsibility in Thailand.