Dear Authors,

We are preparing for publishing the the INZYNIERIA MINERALNA Supplement and Springer proceeding book of the conference. The Supplement and book will be available by early October, 2020.

As you might aware that the worldwide outbreak of COVID – 19 affects international travel dramatically. Vietnam is one among countries who control the outbreak well so far. Currently we have no new case of community infection since April 16. However the government enforce all international passengers to be quarantined at least 14 days.

Therefore some of international presenters might not be able to travel to Hanoi to join the conference.

We are happy to inform you that we will organise our conference as video conferencing (16/10/2020) so that international keynote speakers and presenters can share your works and attend the conference distantly. All registered participants will be informed about schedule, channel for teleconference and password to log in. Conference materials will also be shared to registered participants via email.

We hope that you stay well and keep contributing to our conference and look forrward to meeting you all at the ISRM 2020 HUMG, in Hanoi, Vietnam in October 2020.

Kind regards,