The new NewLands LLC’s Helios and Chronos contracts allow you to expand your Mission control with the new C Tiles. If you acquire the Helios you will get access to 6 additional tiles. If you get the Chronos Contract you will get access to an additional 12 Tiles. The Cargo Drop 3 also comes with one of the two C Tiles Contracts.

Tile Contracts offer varying bonus stats, such as increased energy production or improved technology efficiency.

Helios.

• Waste Spawn =  Avg. 18 daily based on a Poisson* distribution
• Tech Efficiency +30%
• Structure Bonus +20%
• 30% drop chance in Cargo Drop 3
• Rent cost:  1 AGOLD/month per tile

Chronos.

• Waste Spawn =  Avg. 15 daily based on a Poisson* distribution
• Tech Efficiency +20%
• Structure Bonus + 10%
• 70% drop chance in Cargo Drop 3
• Rent cost:  1 AGOLD/month per tile

*A Poisson distribution is a discrete probability distribution. It gives the probability of an event happening a certain number of times within a given interval of time or space.

You need a refresher about tiles. Please read about it here