Lanna Resources Public Co. Ltd. had entered into an agreement with the relevant parties on December 29, 2020 to extend the period for LANNA to invest in the new coal mining concession project of PT. Pesona Khatulistiwa Nusantara ("PKN") in Indonesia until March 31, 2021, having details in the reference letter. The company would like to inform that LANNA and the relevant parties are still unable to proceed successfully within the period that was previously specified within March 31, 2021, due to an ongoing outbreak situation of the coronavirus disease 2019 ("COVID-19") both in Thailand and Indonesia. Therefore, LANNA and the relevant parties have entered into an agreement on March 31, 2021 to extend the period for LANNA to invest in the new coal mining concession project of PKN in Indonesia for three more months until June 30, 2021. The progress will be reported when there is a clear agreement.