
The answer
A Class A Microbusiness is a Michigan license letting a single vertically-integrated building grow, process and retail cannabis under one roof, with a 300-plant limit and an $18,600 fee — double the plant limit and roughly double the fee of the standard $8,300 Microbusiness license's 150-plant limit.
Why operators choose it over separate licenses
A Class A Microbusiness avoids the cost of leasing or building three separate facilities for cultivation, processing and retail, and it fits a smaller footprint than a standalone Class B or C grower. The tradeoff is that the 300-plant cap limits scale compared to a Class C grower's 2,000 plants, so it suits operators prioritizing a single controllable building over maximum canopy.
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