After a week of work, it's done!
And, as with many of my recent animations, here is some added canon I whipped up. Note that this is meant to enhance the film, but you don't need to read this to understand it, nor does it serve as an explanation of my somewhat shaky plot.
Following Sorven Crick’s death twenty years ago, all knowledge of the cover-up and the purpose for the specified ‘mining zones’ passed out of memory, and so the company began digging across previously-unexplored parts of the planet. By this time, the upper layers of the surface in which the robots had been mining had been mostly eroded away, and so the rediscovery of the green crystals was inevitable.
Torang Prime: Far out in the Dark Reaches, Torang Prime is the largest planet in a vast system, orbiting a grey sun. As such, there is no organic life on Torang Prime or any other planets in the Torangi system, save for the mining operation that has come to this world. It is similar to what scientist descibe as a ‘canonball world’, where intense pressure has crushed the planet’s surface into diamonds (only on Torang Prime, much of the world’s surface has been crushed into orange crystals instead).
So as not to damage the structural integrity of Torang Prime (as a rival corporation did on the planet Xamathamax, which exploded just minutes before the miners reached the planet’s core), the company planned a hundred year tenure on the planet, which would ensure that the planet would not be damaged or stripped totally bare. Even with the discovery of the green crystals, and increased production in previously unexplored ‘zones’, the company is predicted to fall short of their Maximum Mining Gain by 30%, a prediction which won current company director Orvin Klank the Miner’s Guild Environmental Award. This tenure ends in thirty years.