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Reg D 506(c)TRL43.2–4.8Tier IAnnounced

Vanguard Supercritical

Vanguard Supercritical

Water above its critical point, 45% thermal efficiency, and no steam generator. Announced, not yet open.

Above 22 MPa and 374 °C water stops distinguishing between liquid and gas, which means a reactor can drive a turbine directly with no steam generator and no boiling crisis to design around. Thermal efficiency rises from roughly 33% to 45%. The unresolved problem is materials: very few alloys tolerate supercritical water, radiation and time simultaneously.

James River Technology Park · Lynchburg, VAPre-applicationEscrow: Meridian Trust, N.A.
TRL 4 of 9, band 3.2 to 4.8, signed by Dr. Samuel Adeyemi, PhD Nuclear Engineering; ASME Section III reviewer, on Jun 25, 2026.See the evidence it rests on

$0 committed of $18,000,000

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Released to the issuerCommitted, held in escrowRemaining
Minimum
$25,000

$1,000 per unit

Target coupon
5.00%

Annual, fixed

Term
5 yr
Investors
0

Closes June 30, 2027 · 290 days remaining

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Instrument and terms

Instrument
Convertible note
Risk tier
Tier I · Emerging Technology
Target coupon
5.00%
Expected term
5 yr
Price per unit
$1,000
Minimum investment
$25,000
Target raise
$18,000,000
Opens
September 15, 2026
Closes
June 30, 2027
Escrow agent
Meridian Trust, N.A.

Regulatory rail

Exemption
Regulation D, Rule 506(c)
Offering ceiling
Unlimited
Who can buy
Verified accredited investors only
Resale
Restricted
Resale restriction
12 months
Residency
No restriction
Accreditation
Verified accredited only

Secondary tradingComing soon

Freely tradable does not mean there is a market. An alternative trading system for platform securities is planned and is not operational.