*Maximum number of shares offered subject to adjustment for bonus shares. See Bonus info below.

Call Right Upon liquidation event

The Company has established a Call Right related to shares of Class 1 Common Stock sold in this offering. The Call Right allows the Company, at its sole discretion and at any time prior to a "Liquidation Event" (i.e. sale, merger, or consolidation of the Company) to require holders of Class 1 Common Stock to sell all or a portion of their shares back to the Company at a price that is three (3) times the purchase price paid for the shares of Class 1 Common Stock.

Investment Incentives & Bonuses*

Loyalty Bonus | 10% Bonus Shares

As a Modern Mill employee or Community Member, you are eligible for 10% bonus shares + a merch package.

Time-Based Investment Incentives

Early Bird 1

Invest $1,000+ within the first two weeks and receive 5% bonus shares + a Modern Mill hat.

Early Bird 2

Invest $5,000+ within the first two weeks and receive 10% bonus shares, a Modern Mill t-shirt, and a sample kit/

Early Bird 3

Invest $10,000+ within the first two weeks and receive 15% bonus shares, a Modern Mill hoodie, and a sample kit.

Early Bird 4

Invest $20,000+ within the first two weeks and receive 20% bonus shares, a 10% discount on your first Modern Mill retail order up to $100,000, and a sample kit.

Early Bird 5

Invest $50,000+ within the first two weeks and receive 25% bonus shares + Dinner for you and a guest with one of our founders in a major US city of your choice in 2025, a 20% discount on your first Modern Mill retail order up to $100,000, and a sample kit.

Amount-Based Investment Incentives

Tier 1

Invest $1,000+ and receive a Modern Mill Hat.

Tier 2

Invest $5,000+ and receive 5% bonus shares, a Modern Mill t-shirt, and a sample kit.

Tier 3

Invest $10,000+ and receive 10% bonus shares, a Modern Mill hoodie, and a sample kit.

Tier 4

Invest $20,000+ and receive 15% bonus shares + a 10% discount on your first Modern Mill retail order up to $100,000.

Tier 5

Invest $50,000+ and receive 20% bonus shares + Dinner for you and a guest with one of our founders in a major US city of your choice in 2025, a 20% discount on your first Modern Mill retail order up to $100,000, and a sample kit.

*In order to receive perks from an investment, one must submit a single investment in the same offering that meets the minimum perk requirement. Bonus shares from perks will not be granted if an investor submits multiple investments that, when combined, meet the perk requirement. All perks occur when the offering is completed. Crowdfunding investments made through a self-directed IRA cannot receive perks due to tax laws. The Internal Revenue Service (IRS) prohibits self-dealing transactions in which the investor receives an immediate, personal financial gain on investments owned by their retirement account. As a result, an investor must refuse those perks because they would be receiving a benefit from their IRA account.

The 10% StartEngine Venture Club Bonus

Sustainable Lumber, Inc. will offer 10% additional bonus shares for all investments that are committed by investors that are eligible for the StartEngine Venture Club.

This means eligible StartEngine shareholders will receive a 10% bonus for any shares they purchase in this offering. For example, if you buy 100 shares of Class 1 Common Stock at $1.88 / share, you will receive 110 shares of Class 1 Common Stock, meaning you’ll own 110 shares for $188. Fractional shares will not be distributed and share bonuses will be determined by rounding down to the nearest whole share.

This 10% Bonus is only valid during the investor’s eligibility period. Investors eligible for this bonus will also have priority if they are on a waitlist to invest and the company surpasses its maximum funding goal. They will have the first opportunity to invest should room in the offering become available if prior investments are canceled or fail.

Investors will receive the highest single bonus they are eligible for among the bonuses based on the amount invested and the time of offering elapsed (if any). Eligible investors will also receive the Venture Club bonus and the Loyalty Bonus in addition to the aforementioned bonus.

Service Program Fee: For this offering, the issuer pays StartEngine Primary a fixed monthly Service Program Fee for investor outreach. Our representatives may contact investors and recommend this offering, and they may be compensated for that outreach. Any such compensation comes from the StartEngine Primary's existing placement fee and does not increase the investor's costs.