I know absolutely nothing about your business, which is normal for most of us. It is staggering how much we do not know even in the space where we are considered experts. Humbling!
I just Googled:
1. "Uses for large waste streams of MDF and resinated dust" and got 784,000 results;
2. "Who produces products for large waste streams of MDF and resinated dust?" and got 688 results;
3. "Competitors for products from large waste streams of MDF and resinated dust?" and got 327 results; and
4, "Consultants for products from large waste streams of MDF and resinated dust?" and got 547 results.
Somewhere in the mess is a nugget(s). Those results and Internet alerts that you set for future results are a treasure hunt designed to make you think about the answers that best suit your sensibilities. Also, I suspect that if you review 10-Ks, annual reports or other public information on large companies who are in your space - they are remarkably open about what they do. This input is great. Try to stay under the radar of the big Bears and find undeserved market niches where your win rate is high and pricing firmer.
I am a disciple of:
"The only true wisdom is in knowing you know nothing." - Aristotle
"The greatest enemy of knowledge is not ignorance; it is the illusion of knowledge." - Stephen Hawking
The answer is in your educated, experienced imagination and willingness to put very hard work into your treasure hunt - you, yourself. We all have to do that. I am impressed with your initiative.A great on-point strategic book that opens minds on these issues may be: Andrew Grove (co-founder of Intel), Only the Paranoid Survive: How to Identify and Exploit the Crisis Points that Challenge Every Business, Doubleday-Random House, 1996, New York, NY
I apologize for being so basic; I have just been seeking the best answers for similar questions for too many decades.
Good luck! David