(a) Any person who trafficks in marihuana by knowingly or intentionally manufacturing, distributing, dispensing, or cultivating or possessing with intent to manufacture, distribute, dispense, or cultivate, or by bringing into the commonwealth a net weight of fifty pounds or more of marihuana or a net weight of fifty pounds or more of any mixture containing marihuana shall, if the net weight of marihuana or any mixture thereof is:

1. (1) Fifty pounds or more, but less than one hundred pounds, be punished by a term of imprisonment in the state prison for not less than two and one-half nor more than fifteen years or by imprisonment in a jail or house of correction for not less than one nor more than two and one-half years. No sentence imposed under the provisions of this section shall be for less than a mandatory minimum term of imprisonment of one year and a fine of not less than five hundred nor more than ten thousand dollars may be imposed but not in lieu of the mandatory minimum one year term of imprisonment, as established herein.
2. (2) One hundred pounds or more, but less than two thousand pounds, be punished by a term of imprisonment in the state prison for not less than 2 nor more than fifteen years. No sentence imposed under the provisions of this section shall be for less than a mandatory minimum term of imprisonment of 2 years and a fine of not less than two thousand and five hundred nor more than twenty-five thousand dollars may be imposed but not in lieu of the mandatory minimum term of imprisonment, as established herein.
3. (3) Two thousand pounds or more, but less than ten thousand pounds, be punished by a term of imprisonment in the state prison for not less than 31/2 nor more than fifteen years. No sentence imposed under the provisions of this section shall be for less than a mandatory minimum term of imprisonment of 31/2 years and a fine of not less than five thousand nor more than fifty thousand dollars may be imposed but not in lieu of the mandatory minimum term of imprisonment, as established herein.
4. (4) Ten thousand pounds or more, be punished by a term of imprisonment in the state prison for not less than 8 nor more than fifteen years. No sentence imposed under the provisions of this section shall be for less than a mandatory minimum term of imprisonment of 8 years and a fine of not less than twenty thousand nor more than two hundred thousand dollars may be imposed but not in lieu of the mandatory minimum term of imprisonment, as established herein.

(b) Any person who trafficks in a controlled substance defined in clause (4) of paragraph (a), clause (2) of paragraph (c) or in clause (3) of paragraph (c) of Class B of section thirty-one by knowingly or intentionally manufacturing, distributing or dispensing or possessing with intent to manufacture, distribute or dispense or by bringing into the commonwealth a net weight of 18 grams or more of a controlled substance as so defined, or a net weight of 18 grams or more of any mixture containing a controlled substance as so defined shall, if the net weight of a controlled substance as so defined, or any mixture thereof is:

1. (1) Eighteen grams or more but less than 36 grams, be punished by a term of imprisonment in the state prison for not less than 2 nor more than 15 years. No sentence imposed under this clause shall be for less than a minimum term of imprisonment of 2 years, and a fine of not less $2,500 nor more than $25,000 may be imposed but not in lieu of the mandatory minimum term of imprisonment, as established herein.
2. (2) Thirty-six grams or more, but less than 100 grams, be punished by a term of imprisonment in the state prison for not less than 31/2 nor more than 20 years. No sentence imposed under this clause shall be for less than a mandatory minimum term of imprisonment of 31/2 years, and a fine of not less than $5,000 nor more than $50,000 may be imposed but not in lieu of the mandatory minimum term of imprisonment, as established herein.
3. (3) One hundred grams or more, but less than two hundred grams, be punished by a term of imprisonment in the state prison for not less than 8 nor more than twenty years. No sentence imposed under the provisions of this clause shall be for less than a mandatory minimum term of imprisonment of 8 years and a fine of not less than ten thousand nor more than one hundred thousand dollars may be imposed but not in lieu of the mandatory minimum term of imprisonment, as established herein.

4. (4) Two hundred grams or more, be punished by a term of imprisonment in the state prison for not less than 12 nor more than twenty years. No sentence imposed under the provisions of this clause shall be for less than a mandatory minimum term of imprisonment of 12 years and a fine of not less than fifty thousand nor more than five hundred thousand dollars may be imposed but not in lieu of the mandatory minimum term of imprisonment, as established herein.

   [Subsections (c) through (c3/4) applicable as provided by 2018, 69, Sec. 237.]