OPINION
Plаintiff-Appellant Memphis Biofuels, LLC appeals the dismissal of its suit against Defendant-Appellee Chickasaw Nation Industries, Inc. for lack of subject-matter jurisdiction. Because we agree with the district court that Chickasaw Nation Industries, Inc. enjoys tribal-sovereign immunity, we AFFIRM.
I. BACKGROUND
Memphis Biofuels, LLC (“MBF”) is a biodiesel refining company incorporated in Delaware with its principal place of business in Memphis, Tennessee. Chickasaw Nation Industries, Inc. (“CNI”) is a federally chartered tribal corporation with its principal place of business in Oklahoma and is incorporated under the Oklahoma Indian Welfare Act (“OIWA”), 25 U.S.C’. § 503, et set/. The OIWA expanded the Indian Reorganization Act (“IRA”), 25 U.S.C. § 461, et seq., to include Indian tribes in Oklahoma. Section 17 of the IRA, 25 U.S.C. § 477, allows for a tribe to incorporate; thus, tribes incorporated under the IRA or OIWA are called Section 17 corporations. As a Section 17 corporation, CNI is wholly owned by the Chickasaw Nation tribe but is an entity separate and distinct from the Chickasaw Nation.
In 2006, CNI and MBF negotiated a deal whereby CNI would deliver diesel fuel and soybeаn oil to MBF’s Memphis facility for refinement and later resale as biodiesel. MBF recognized that, should a dispute arise, CNI might try to claim sovereign immunity. Thus, MBF insisted on a contractual provision expressly waiving any sovereign immunity and a “representation and warranty” that CNI’s waiver was valid, enforceable, and effective. Throughout the negotiations, the parties exchanged draft versions of the agreement. On October 5, 2006, CNI forwarded MBF a draft of the agreement that CNI’s in-house lawyers had reviewed and electronically edited. Thе edits included five separate comments; two of the comments addressed the sovereign-immunity waiver *919 provision and said that CNI board approval was necessary to waive tribal-sovereign immunity. Ultimately, however, both parties signed the agreement, and the board did not waive immunity.
CNI repudiated the agreement, and MBF began mediation procedures through the American Arbitration Association (“AAA”), as required by the agreement. Initially, CNI participated in the mediation. CNI sent its president and CEO, a second corporate officer, two corporate counsels, and outside counsel to attend a day-long mediation session with MBF. After the session, the parties negotiated directly. Unable to resolve the dispute, MBF filed a demand for arbitration on March 10, 2008, but CNI refused to arbitrate. Instead, on April 15, 2008, CNI filed suit against MBF and the AAA in Chickasaw Nation District Court in Oklahoma. The lawsuit seeks a declaratory judgment that the waiver of CNI’s sovereign immunity is invalid for want of board approval and seeks injunctive relief to prevent the arbitration between MBF and CNI.
MBF respоnded by filing suit in the United States District Court for the Western District of Tennessee. MBF sought a declaratory judgment under 28 U.S.C. § 2201 that CNI’s waiver of sovereign immunity is effective; an order compelling arbitration under the contract’s arbitration clause; and a temporary restraining order (“TRO”) prohibiting CNI from proceeding with its case against MBF in the Chickasaw Nation District Court. CNI moved to dismiss MBF’s suit for lack of subject-matter jurisdiction under Federal Civil Procedure Rule 12(b)(1) or, in the alternative, to stay the suit based on MBF’s failure to exhaust tribal remedies.
The district court held a TRO hеaring on June 10, 2008. Both parties emphasized the threshold issue of whether MBF’s action survives CNFs motion to dismiss, and, in particular, whether the federal court has jurisdiction. The district court concluded that it did not have jurisdiction for two reasons. First, the court decided that it did not havе diversity jurisdiction because CNI has sovereign immunity, and, therefore, CNI is not a diverse party under 28 U.S.C. § 1332. Second, according to the district court, the case raises no federal question, because, in its complaint, MBF did not properly plead the issue of the Chickasaw Nation District Court’s jurisdiction over MBF as a basis for federal-question jurisdiction. Because the court decided it did not have jurisdiction, the court granted CNI’s motion to dismiss. MBF timely appealed.
II. ANALYSIS
We “‘review de novo the district court’s decision to dismiss for lack of subject matter jurisdiction under Federal Rule of Civil Procedure 12(b)(1).’ ”
Lovely v. United States,
A. Tribal Sovereign Immunity
As a threshold matter, we must determine if CNI enjoys tribal-sovereign immu
*920
nity. If so, a dismissal for lack of jurisdiction was proper.
See Lovely,
1. Automatic Waiver
MBF argues that the act of incorporation under Section 17 divests entities of their tribal-sovereign immunity. This is an issue of first impression for our Court, and other cоurts are in dispute over this issue.
See generally
Ann K. Wooster,
Validity and Construction of Indian Reorganization Act,
We agree. As discussed above, CNI is chartered under the OIWA, 25 U.S.C. § 503,
et seq.
The OIWA is an extension of the IRA, 25 U.S.C. § 461,
et seq.,
wdiich Congress pаssed to encourage non-Indian businesses to engage in commerce with Indian tribes.
See Parker Drilling Co. v. Metlakatla Indian Cmty.,
The Secretary of the Interior may, upon petition by any tribe, issue a charter of incorporation to such tribe.... Such charter may convey to the incorporated tribe the power to purchase, take by gift, or bequest, or otherwise, own, hold, manage, operate, and dispose of property of every description, real and personal, including the power to purchase restricted Indian lands and to issue in exchange therefor interests in corporate property, and such further powers as may be inсidental to the conduct of business, not inconsistent with law....
25 U.S.C. § 477. Thus, the statute is silent as to whether Section 17 incoiporated tribes have sovereign immunity.
We conclude that it is more appropriate to interpret this silence as not abrogating sovereign immunity for two reasons. First, in
Kiowa Tribe of Oklahoma v. Manufacturing Technologies,
*921
Inc.,
the Supreme Court held that “[a]s a matter of federal law, an Indian tribe is subject to suit only where Congress has authorized the suit or the tribe has waived its immunity.”
MBF responds by arguing that under a multi-factor test, CNI is not “an aim” of the Chickasaw Nation and thus does not enjoy tribal-sovereign immunity. MBF relies on a Colorado appellate court decision,
State ex rel. Suthers v. Cash Advance & Preferred Cash Loans,
In sum, we conclude that the better reading of Section 17 is that it creates “arms of the tribe” that do not automatically forfeit tribal-sovereign immunity.
2. Express Waiver
Of course, a tribe may choose to expressly waive its tribal-sоvereign immunity either in its charter or by agreement.
See Kiowa.,
To sue in its corporate name and, notwithstanding the immunity possessed by the Corporation as a wholly owned corporation of the Chickasaw Nation, to permit by written resolution of the board of directors enforcement of leases, contracts, agreements and mortgage instruments to which the Corporation is a pаrty, against the Corporation in tribal court, or any court of competent jurisdiction by agreement of the board of directors....
MBF argues that CNI’s charter has a sue- and-be sued clause, which expressly waives immunity. Some courts have held that a broad sue-and-bе-sued clause does waive tribal-sovereign immunity.
See Validity and Construction of Indian Reorganization Act,
In addition to the tribal charter, an agreement can validly waive tribal-sovereign immunity. Here, the parties agree that the board of directors did nоt pass a resolution waiving sovereign immunity. The parties did, however, sign a waiver provision whereby both parties waived all immunities. MBF believed that CNI obtained the required approval for this waiver provision—but regardless of what MBF may have thought, board approvаl was not obtained, and CNI’s charter controls. In short, without board approval, CNI’s sovereign immunity remains intact.
3. Equitable Doctrines
MBF also argues that even without board approval, CNI waived sovereign immunity based on equitable doctrines because CNI signed the agreement representing that it waived sovereign immunity. We disagree. Courts have held that unauthorized acts of tribal officials are insufficient to waive tribal-sovereign immunity.
See Native Am. Distrib. v. Seneca-Cayuga Tobacco Co.,
This result may seem unfair, but that is the reality of sovereign immunity: “[I]m-munity can harm those who ... are dealing with a tribe... . Thesе considerations might suggest a need to abrogate tribal immunity, [but] ... we defer to the role Congress may wish to exercise in this important judgment.”
Kiowa,
Because we conclude that CNI enjoys tribal-sovereign immunity, we do not address the issues of diversity jurisdiction and federal-question jurisdiction.
*923 III. CONCLUSION
For the foregoing reasons, we AFFIRM the district court’s decision.
