In the "Industrial Boom" event, you earn points by collecting materials from the trade center and goods from factories. The more points you get, the higher you will rise in the leaderboard, and the more valuable the prizes will be. To track your progress, click on the event icon in the bottom right corner of the screen. 

You have the opportunity to receive a unique reward. To do this, join forces with the group of players you are in during this event and score enough points.