Social Equity, Impact & Community EngagementKeio Plaza Hotel Tokyo Wins Grand Prize at Eco Mark Award 2025PR NewswireDecember 9, 2025December 11, 2025 by PR NewswireDecember 9, 2025December 11, 2025029 – Keio Plaza Hotel Recognized for Its Company-wide Sustainability Promotion, Food Waste Reduction and Installation of Clothing Collection Boxes – Keio Plaza Hotel Co., Ltd....
