Mass Rapid Transit Authority of Thailand (MRTA) and National Blood Centre, Thai Red Cross Society organized 300 thousand cc - 30th year MRTA activity promoting blood donation totally 300,000 cc for Thai Red Cross Society in occasion of MRTA 30th establishment anniversary. The donor blood was counted from general blood donor donated blood at all National Blood Centre office and sent information online between 4th July – 21st August 2022 and MRTA officers, employees and contractors participated at MRTA blood donation at MRTA head office on 9th August 2022 including blood donors at National Blood Centre head office on 21st August 2022 with concluded the blood totally 1,050 unit (420,000 cc).