Tidewater Inc (TDW) · Oct 5, 2026 · Material agreement

Tidewater debt amendment ends seller guarantees, tightens BNDES terms

Guarantee transferred — Tidewater replaces sellers as guarantor; rates rise to 3.21%-3.77% with 130% collateral

Tidewater’s debt amendment completes the Brazil acquisition cleanup: seller guarantees are released, but loan rates and collateral requirements rise.

Tidewater is integrating the Wilson Sons Ultratug acquisition to build scale in Brazil, adding 22 platform supply vessels and expanding its Brazilian fleet from 6 to 28 vessels. This filing is the financing cleanup required to make that expansion fully Tidewater-backed.

The acquisition debt has formally moved onto Tidewater’s credit. Effective October 1, Tidewater replaced Wilson Sons and Remolcadores as guarantors of the BNDES construction loans, releasing the sellers from those obligations. 〔0〕

ItemFiling detail
Replacement bank guaranteesUp to $170.458 million (BNDES Construction Loans)
Revised interest rates3.21% on four facilities; 3.77% on one facility (BNDES Construction Loans)
Collateral coverage130% for all BNDES Construction Loans (BNDES Construction Loans)
Replacement LC cancellationEffective October 2, 2026 (BNDES Construction Loans)

The financing burden is modestly less flexible than before. The amendment raises the stated interest rates, increases collateral coverage to 130%, and updates acceleration provisions, so Tidewater gets the seller guarantees removed but assumes the direct lender exposure on tighter terms. 〔1〕

The $170.5 million bank-guarantee backstop is no longer needed. Once BNDES accepted Tidewater as guarantor, the Replacement LCs procured from DNB were canceled on October 2, removing that separate support arrangement. 〔2〕 Because the guarantee substitution and LC cancellation were already required under the acquisition agreement and the direct guarantee had been disclosed on September 21, the event is partly known rather than a fresh strategic surprise.

Bottom line: This completes an expected post-acquisition financing handoff, not a new growth event. It simplifies the Brazil integration while putting the acquired loan obligations directly on Tidewater under somewhat tighter and more expensive terms.

What to watch next

Q3 2026 10-Q with BNDES loan agreements

Original filing on SEC EDGAR

More Tidewater Inc news

Tidewater debt amendment ends seller guarantees, tightens BNDES terms | TDW Stock News
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