en.wikipedia.org/wiki/Methylglyoxal

The claim is contradicted by authoritative and primary-source evidence.

• The IARC Monographs entry on methylglyoxal states: "Methylglyoxal is not produced commercially." It then lists laboratory/chemical preparation methods such as warming isonitrosoacetone with dilute sulfuric acid, distilling dilute dihydroxyacetone, catalytic dehydrogenation of glycerol, and oxidation of acetone with selenium dioxide. That directly conflicts with the statement that methylglyoxal is produced industrially by carbohydrate degradation using overexpressed methylglyoxal synthase.
• The source commonly used for the Wikipedia sentence about "overexpressed methylglyoxal synthase" is an Applied and Environmental Microbiology paper on metabolic engineering. In that paper, the authors say they were developing processes for microbial conversion of sugars to diols, and report that coexpressing methylglyoxal synthase with glycerol dehydrogenase in E. coli produced 1,2-propanediol. That is not evidence of established industrial production of methylglyoxal itself.

So the sentence combines two different ideas incorrectly: methylglyoxal synthase can be overexpressed in research/biotech systems, but authoritative references do not describe methylglyoxal as being produced commercially or industrially by that route.