Please don't use this strategy for real life purposes.
This is for entertainment purposes only

I propose classifying resources into two categories:
Raw Resources - These are resources that can be obtained without needing any other resource to produce them. Examples include coal, mysterious plants, fish, cows, petroleum, and limestone.
Finished Resources - These are resources that require other resources to be produced. Examples include ammo, pills, steak, and steel.
To implement this strategy effectively, you would need the support and assistance of some industrialist friends.
A group of people at least three supporting and taking part in the operation. From this point onwards we will refer to the group as the Cartel.
In our case we will use the mystery plant as an example this could be applied to any other resource.
Look at the resources regarding the mystery plant in the world

Mysterious plant resources Highlighted
As you can see, there are only a handful [8] of mystery plant resources. The same goes with other resources.
Now as we mentioned earlier let's take the bare minimum amount of cartel members which is 3.
ASSUMING EACH MEMBER HAS 6 COMPANIES
Total Cartel companies = 6 + 6 + 6 = 18 companies
And the ratio of companies divided between raw resources to finished ones
2:4
[FOR MAX. EFFECIENCY]
As a company gives 1.5x returns when placed on resource rich lands
Once the cartel members Establish companies in all of these resource deposits then they will have a firm Control over the supply of these raw resources.
Market manipulation in the game is not that tough. Especially when you have your industrialist friends with you!
Let's play with the human brain and see how to manipulate it alongside the market.

Look into how the market looks sometimes
Now, as you can read in the caption of the image, I wrote sometimes without giving a context about what do I really mean by sometimes, you'll know it so don't be worried.
Now if you can see the image observe that if a person or rather a member, of the cartel of course, Or in that case some members Organize themselves and by all the fish in this case to raise the price up to 1.5 BTC., They would only spend around 1 50 BTC. and the price of the resource would be up to 1.5 BTC. from 1.45 BTC.
Now These people can sell those fish they collected while buying all the cheap ones at higher price of 1.5 BTC and hence would not lose any substantial money.
Repeat this cycle for 3 to four times and the price of the resource you want to sell which in directly is the value profit will be 1.5x the previous ones.
OfCourse, I know now what you would say, Well there are other players who would sell the resource And bring the price back to where it was. but my boy You are missing the fact that they also want to make a profit hence let's say the price settles to 1.5 after one cycle then these players would sell the resource at 1.48 BTC. Still, anyways we achieved your objective Which was raising the price and consequently, your profit.
And then you can sell what you produced at higher prices and Literally print money!
Please don't use this strategy in the game.
This is for entertainment purposes only.
Sooo.....
What r u waiting for?
SEND US REQUEST TO COVER THE COUNTRY/TOPIC OF YOUR CHOICE, TIP AND KEEP ON YAPPIN'!!!