MS HB1

Amends the Mississippi Major Economic Impact Act to add new project categories including flat-rolled aluminum production facilities, biocarbon production facilities from biomass, and related port improvement projects requiring a collective minimum investment of $2.5 billion and creation of at least 1,000 full-time jobs with average salary of $93,000

Authorizes issuance of up to $246,798,550 in state general obligation bonds for these new projects, with proceeds available for site preparation, utilities, infrastructure, job training, environmental studies, and annual payroll-based grants of up to 3.5% of additional payroll for 10 years (capped at $45 million total)

Provides sales tax exemptions for construction materials, manufacturing equipment, utilities, and supplies used directly in project operations, along with a 15-year income tax credit equal to the enterprise's full state income tax liability on project-derived income

Authorizes counties to enter fee-in-lieu agreements for up to 30 years exempting projects from ad valorem taxes, and permits public agencies to transfer property, make grants, and provide other assistance to qualifying enterprises without certain standard procurement requirements

Protects project sites from surface and subsurface mineral exploration activities without enterprise consent, and allows airport authorities to sell or lease property for up to 99 years to qualifying aluminum production facilities at appraised fair market value