How to play The board game Planet Trade

About Planet Trade, from BoardGameGeek:

In the far away future, the population of Earth has increased drastically, and more resources are needed for the everlasting demands. The only logical solution was to search for additional resources on other planets, and expedition teams was therefore sent into the vast space to search for planets with an atmosphere suitable for humans, so they can live there and establish farms, mines, and production facilities on them. In this new reality large companies seek to dominate the transport market in space. You are a CEO of your own company with your own fleet of spaceships. Discover planets and exploit these to sell resources, build factories, expand your company, and tax your citizens to achieve power and wealth. But be aware of your competitors because they have the same goals and will have the opportunity to attack you throughout the game. Who will have the best strategy? The Players acquire different cards by drawing them and paying their cost to improve their company or the demand marked of resources. Even to irritate your competition doing the game. Your income is based on the resources you bring back to earth and how you evolved the newly found planets in the Galaxy To win the game, you must collect the most points through shares, ownership, and secret missions for you to call yourself the greatest trader in the galaxy. -description from the publisher