APPROVED CHAPTER
JULY 1, 2025 469
BY GOVERNOR PUBLIC LAW
STATE OF MAINE
_____
IN THE YEAR OF OUR LORD
TWO THOUSAND TWENTY-FIVE
_____
H.P. 601 - L.D. 936
An Act to Amend the Laws Regarding the Mining Excise Tax
Be it enacted by the People of the State of Maine as follows:
Sec. 1. 1 MRSA c. 31, as amended, is repealed.
Sec. 2. 5 MRSA §453-A, as amended by PL 1999, c. 668, §3, is further amended to
read:
§453-A. Board of trustees
The Mining Excise Tax Trust Fund Board of Trustees, as established in section
12004‑G, subsection 33‑B and referred to in the chapter as the "board," consists of 5
members, at least one of whom must be a resident of the unorganized territory.
1. Appointment; qualifications. The members of the board are appointed by the
Governor and are subject to review by the joint standing committee of the Legislature
having jurisdiction over taxation matters and to confirmation by the Legislature, except that
the Governor may not appoint any members to the board until such time as funds accrue to
the Mining Excise Tax Trust Fund. The Governor shall ensure that members of the board
have at least the following qualifications:
A. At least one member must be experienced in the application of hydrology and
groundwater science;
B. At least one member must be experienced in the application of soil and air pollution
science;
C. At least one member must be experienced in public health science;
D. At least one member must be a representative of a municipal or county government
in which metallic mining occurs; and
E. At least one member must be a resident of the unorganized territory.
2. Terms. Of the initial members one serves a term of one year, one serves a term of
2 years, one serves a term of 3 years, one serves a term of 4 years and one serves a term of
5 years. Upon the expiration of the initial terms, members Members are appointed to serve
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staggered 5-year terms. Members may be reappointed. Members serve until their
successors are appointed and qualified.
3. Vacancies. A vacancy is filled for the expiration of the term to which the member
has been appointed.
Sec. 3. 5 MRSA §454-A, sub-§5, as amended by PL 1999, c. 668, §4, is further
amended to read:
5. Biennial report and annual plan. Upon appointment of the board members
pursuant to section 453‑A, subsection 1, the board shall prepare:
A. A biennial report to be submitted to the Governor and the Legislature, to the joint
standing committee of the Legislature having jurisdiction over taxation matters and to
the joint standing committee of the Legislature having jurisdiction over mining and
mineral extraction matters. The report must include an audited financial statement of
the fund and a listing of activities undertaken by the board in the preceding biennium.
The report must be submitted 30 days prior to the convening of each first regular
session of the Legislature; and
B. An annual general plan of expenditures and activities of the coming year. The
general plan must be submitted to the Legislature for approval 30 days prior to the
convening of each regular session.; and
C. If an incident or event requires the response of the board and the expenditure of
funds by the board, a report must be made to the joint standing committee of the
Legislature having jurisdiction over taxation matters and to the joint standing
committee of the Legislature having jurisdiction over mining and mineral extraction
matters within 90 days of the expenditure.
Sec. 4. 5 MRSA §455, sub-§2, as enacted by PL 1981, c. 711, §2, is amended to
read:
2. Uses. Funds may be used as follows:
A. To purchase and develop land or other real property interests for park and
recreational uses;
B. To purchase wildlife habitats, marine habitats and unique natural areas; or
C. To restore the quality of marine waters, lakes, rivers and streams.; or
D. To restore the quality of lands, geographic and topological features and soils.
Sec. 5. 14 MRSA §6662, sub-§1, ¶C, as enacted by PL 1983, c. 189, is amended
by amending subparagraph (2) to read:
(2) Payment of any the excise tax under Title 36, sections 2851 to 2865 section
2856;
Sec. 6. 36 MRSA §271, sub-§2, ¶A, as amended by PL 2019, c. 401, Pt. A, §4, is
further amended by repealing subparagraph (6).
Sec. 7. 36 MRSA §271, sub-§10, ¶A, as enacted by PL 2009, c. 571, Pt. WWW,
§7, is amended to read:
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 A. The filing fee for a petition for an appeal of current use valuation under the tree
growth tax law, chapter 105, subchapter 2‑A, the farm and open space tax law, chapter
105, subchapter 10, or the working waterfront land law, chapter 105, subchapter 10‑A
or a petition for an appeal relating to section 2865 is $75.
Sec. 8. 36 MRSA §603, sub-§10, as amended by PL 2025, c. 113, Pt. D, §14, is
further amended to read:
10. Tax situs. The tax situs of tangible personal property is at the mine mining site if
that property is:
A. Owned, leased or otherwise subject to possessory control of a mining company;
and
B. On route to or from, being transported to or from or destined to or from a mine
mining site.
Except as otherwise provided in this subsection, the tax situs of tangible personal property
leased to a mining company is in the place where the property is situated.
For the purposes of this subsection, the definitions of section 2855 apply.
Sec. 9. 36 MRSA §655, sub-§1, ¶S, as amended by PL 2019, c. 440, §1, is repealed.
Sec. 10. 36 MRSA §655, sub-§1, ¶S-1 is enacted to read:
S-1. Unextracted minerals. For purposes of this paragraph, "minerals" has the same
meaning as in section 2855, subsection 9;
Sec. 11. 36 MRSA §656, sub-§1, ¶I, as enacted by PL 1983, c. 555, §3, is repealed.
Sec. 12. 36 MRSA §656, sub-§1, ¶I-1 is enacted to read:
I-1. Unextracted minerals. For purposes of this paragraph, "minerals" has the same
meaning as in section 2855, subsection 9.
Sec. 13. 36 MRSA §2013, sub-§1, ¶B-2 is enacted to read:
B-2. "Commercial mining" means the commercial extraction or removal of metallic
minerals or overburden or the preparation, washing, cleaning or other treatment of
metallic minerals and includes the bulk sampling, advanced exploration, extraction or
beneficiation of metallic minerals within a mining area.
"Commercial mining" does not include:
(1) Exploration;
(2) The physical extraction, crushing, grinding, storage or heating of calcium
carbonate or limestone to produce cement;
(3) The exploration for or physical extraction, crushing, grinding, sorting or
storage of borrow, topsoil, clay or silt; or
(4) The exploration for or physical extraction, crushing, grinding, sorting or
storage of gemstones, aggregate, dimension stone or other construction materials
from a quarry.
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 As used in this paragraph, "advanced exploration," "beneficiation," "cement,"
"exploration" and "metallic mineral" have the same meanings as in Title 38, section
490-MM.
Sec. 14. 36 MRSA §2013, sub-§1, ¶C, as amended by PL 2019, c. 7, §2, is further
amended to read:
C. "Depreciable machinery and equipment" means, except as otherwise provided by
this paragraph, that part of the following machinery and equipment for which
depreciation is allowable under the Code and repair parts for that machinery and
equipment:
(1) New or used machinery and equipment for use directly and primarily in
commercial agricultural production, including self-propelled vehicles; attachments
and equipment for the production of field and orchard crops; new or used
machinery and equipment for use directly and primarily in production of milk,
maple syrup or honey, animal husbandry and production of livestock, including
poultry; new or used machinery and equipment used in the removal and storage of
manure; and new or used machinery and equipment not used directly and primarily
in commercial agricultural production, but used to transport potatoes from a truck
into a storage location;
(2) New or used watercraft, nets, traps, cables, tackle and related equipment
necessary to and used directly and primarily in commercial fishing;
(3) New or used watercraft, machinery or equipment used directly and primarily
for commercial aquacultural production, including, but not limited to: nets; ropes;
cables; anchors and anchor weights; shackles and other hardware; buoys; fish
tanks; fish totes; oxygen tanks; pumping systems; generators; water-heating
systems; boilers and related pumping systems; diving equipment; feeders and
related equipment; power-generating equipment; tank water-level sensors;
aboveground piping; water-oxygenating systems; fish-grading equipment; safety
equipment; and sea cage systems, including walkways and frames, lights, netting,
buoys, shackles, ropes, cables, anchors and anchor weights; and
(4) New or used machinery and equipment for use directly and primarily in
commercial wood harvesting, including, but not limited to, chain saws, skidders,
delimbers, forwarders, slashers, feller bunchers and wood chippers.; and
(5) New or used machinery and equipment for use directly and primarily in
commercial mining.
"Depreciable machinery and equipment" does not include a motor vehicle as defined
in section 1752, subsection 7 or a trailer as defined in section 1752, subsection 19‑A.
Sec. 15. 36 MRSA §2013, sub-§2, as amended by PL 2015, c. 481, Pt. B, §1 and
affected by §2, is further amended to read:
2. Refund authorized. Any person, association of persons, firm or corporation that
purchases electricity or fuel, or that purchases or leases depreciable machinery or
equipment, for use in commercial agricultural production, commercial fishing, commercial
aquacultural production or, commercial wood harvesting or commercial mining must be
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refunded the amount of sales tax paid upon presenting to the State Tax Assessor assessor
evidence that the purchase is eligible for refund under this section.
Evidence required by the assessor may include a copy or copies of that portion of the
purchaser's or lessee's most recent filing under the United States Internal Revenue Code
that indicates that the purchaser or lessee is engaged in commercial agricultural production,
commercial fishing, commercial aquacultural production or, commercial wood harvesting
or commercial mining and that the purchased machinery or equipment is depreciable for
those purposes or would be depreciable for those purposes if owned by the lessee.
In the event that any piece of machinery or equipment is only partially depreciable under
the United States Internal Revenue Code, any reimbursement of the sales tax must be
prorated accordingly. In the event that electricity or fuel is used in qualifying and
nonqualifying activities, any reimbursement of the sales tax must be prorated accordingly.
Application for refunds must be filed with the assessor within 36 months of the date of
purchase or execution of the lease.
Sec. 16. 36 MRSA §2013, sub-§3, as amended by PL 2015, c. 481, Pt. B, §1 and
affected by §2, is further amended to read:
3. Purchases made free of tax with certificate. Sales tax need not be paid on the
purchase of electricity, fuel or a single item of machinery or equipment if the purchaser has
obtained a certificate from the assessor stating that the purchaser is engaged in commercial
agricultural production, commercial fishing, commercial aquacultural production or,
commercial wood harvesting or commercial mining and authorizing the purchaser to
purchase electricity, fuel or depreciable machinery and equipment without paying Maine
sales tax. The seller is required to obtain a copy of the certificate together with an affidavit
as prescribed by the assessor, to be maintained in the seller's records, attesting to the
qualification of the purchase for exemption pursuant to this section. In order to qualify for
this exemption, the electricity, fuel or depreciable machinery or equipment must be used
directly in commercial agricultural production, commercial fishing, commercial
aquacultural production or, commercial wood harvesting or commercial mining. In order
to qualify for this exemption, the electricity or fuel must be used in qualifying activities,
including support operations.
Sec. 17. 36 MRSA §2854, as enacted by PL 1981, c. 711, §10, is repealed and the
following enacted in its place:
§2854. Excise tax
An annual excise tax is imposed on a mining company for the privilege of conducting
mining in the State and is in addition to any other tax imposed by this Title.
Sec. 18. 36 MRSA §2855, sub-§2, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 19. 36 MRSA §2855, sub-§3, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 20. 36 MRSA §2855, sub-§4, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 21. 36 MRSA §2855, sub-§5, as enacted by PL 1981, c. 711, §10, is amended
to read:
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 5. Gross proceeds. "Gross proceeds" means a mining company's federal gross income
from mining with respect to a mine site, as defined in Section 613 of the code Code, in the
State.
Sec. 22. 36 MRSA §2855, sub-§6, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 23. 36 MRSA §2855, sub-§7, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 24. 36 MRSA §2855, sub-§8, as amended by PL 1983, c. 776, §4, is repealed.
Sec. 25. 36 MRSA §2855, sub-§9, as enacted by PL 1981, c. 711, §10, is amended
to read:
9. Minerals. "Minerals" means all naturally-occurring naturally occurring metallic
minerals as defined in Title 38, section 490-MM, subsection 8.
Sec. 26. 36 MRSA §2855, sub-§10, as enacted by PL 1981, c. 711, §10, is repealed
and the following enacted in its place:
10. Mining. "Mining" has the same meaning as in Title 38, section 490-MM,
subsection 11, except that activity described in Title 38, section 490-MM, subsection 11,
paragraph D is mining regardless of any exclusion by the Department of Environmental
Protection pursuant to Title 38, section 490-NN, subsection 4.
Sec. 27. 36 MRSA §2855, sub-§12, as amended by PL 1983, c. 776, §5, is repealed.
Sec. 28. 36 MRSA §2855, sub-§13, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 29. 36 MRSA §2855, sub-§14, as amended by PL 1993, c. 395, §18, is
repealed.
Sec. 30. 36 MRSA §2855, sub-§15, as enacted by PL 1981, c. 711, §10, is repealed
and the following enacted in its place:
15. Tax year. "Tax year" means an accounting period that is the same as the taxpayer's
taxable year for federal income tax purposes.
Sec. 31. 36 MRSA §2855, sub-§16, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 32. 36 MRSA §2855, sub-§17, as enacted by PL 1981, c. 711, §10, is repealed.
Sec. 33. 36 MRSA §2856, as corrected by RR 2013, c. 2, §45, is repealed and the
following enacted in its place:
§2856. Amount of annual excise tax
The amount of the annual excise tax on a mining company is the mining company's
gross proceeds multiplied by 0.05.
Sec. 34. 36 MRSA §2857, as enacted by PL 1981, c. 711, §10, is amended to read:
§2857. Returns
1. Annual return. A mining company shall file, on or before the date the mining
company's state income tax return is due to be filed, an annual return on a form specified
by the State Tax Assessor assessor for each tax year.
2. Form and contents. The return shall must indicate:
A. The tax due;
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 B. The estimated tax payments made; and
C. Credits provided under section 2858; and
D. Information relating to the value of facilities and equipment, gross proceeds, net
proceeds or other relevant information as the State Tax Assessor assessor may by rule
require.
3. Payments. A mining company shall pay the tax due, less estimated tax payments
and credits, at the time its annual return is due without extensions.
4. Extensions. The State Tax Assessor assessor may grant a reasonable extension of
time for filing a return, declaration, statement or other document or payment of tax or
estimated tax required by this chapter on such terms and conditions as he the assessor may
require. The An extension for filing a return, declaration, statement or other document
under this chapter may not exceed 8 months, except that, when a mining company is
granted an extension of time within which to file a federal income tax return for the tax
year, an extension to file the mining company's return with respect to the tax imposed by
this chapter is automatically granted for an equivalent period from the date prescribed for
filing the return under this chapter plus 30 days. If an extension of time is granted for
payment of an amount of tax under this chapter, the assessor may require the taxpayer to
furnish a bond or other security in an amount not exceeding twice the amount for which
the extension of time for payment is granted, on terms and conditions as the assessor may
require.
5. Computation. In computing a mining company's tax, gross proceeds and net
proceeds shall must be computed as if each mine site mining property were a separate
taxpayer. To the extent the mining property is located both in this State and in one or more
other states or Canadian provinces, th