United States Court of Appeals
                          FOR THE EIGHTH CIRCUIT
                                  ___________

                                  No. 03-2254
                                  ___________

Trustees of the Graphic                *
Communication International Union      *
Local 1B Health and Welfare            *
Fund "A"; Trustees of the Graphic      *
Communication International Union      *
Local 1B Heath and Welfare             *
Fund "B",                              * Appeal from the United States
                                       * District Court for the
            Appellees,                 * District of Minnesota.
                                       *
      v.                               *
                                       *
Tension Envelope Corporation,          *
                                       *
            Appellant.                 *
                                  ___________

                            Submitted: May 14, 2004
                               Filed: July 7, 2004
                                ___________

Before WOLLMAN, HAMILTON,1 and BYE, Circuit Judges.
                        ___________

BYE, Circuit Judge.

      This case involves a dispute between the trustees of two multiemployer trust
funds and an employer who participates in the funds. The employer's contributions

      1
       The Honorable Clyde H. Hamilton, United States Circuit Judge for the Fourth
Circuit, sitting by designation.
to the funds were governed in part by a Collective Bargaining Agreement (CBA)
between it and its unionized employees. The employer entered into a Side Letter with
the union to limit trust fund contributions for medical and dental benefits to a single
monthly premium for employees married to each other, since one spouse would be
covered as a dependent of the other. The trustees sued, contending the employer must
continue to pay a monthly premium for each spouse, as it had been doing since 1990.

       The trustees moved for summary judgment, and the district court2 granted the
motion. The district court determined 1) the trust fund agreements and the CBA
conflicted; 2) in the case of a conflict, the trust fund agreements controlled; and 3) the
trust fund agreements required the employer to pay contributions for all employees.
In the alternative, the district court noted the Side Letter, by its own terms, would be
withdrawn if "a prior agreement" obligated the employer to pay for both spouses. The
district court held the employer's agreement to participate in the trust funds, and past
practice of paying contributions for each spouse, constituted "a prior agreement" and
thus the Side Letter was ineffective. With this alternative ground we agree, and
therefore affirm without reaching the purported conflict between the trust fund
agreements and the CBA.

                                            I

      On February 14, 1990, Tension Envelope Corporation began participating in
two multiemployer trust funds established pursuant to § 302(c)(5) of the Labor
Management Relations Act of 1947 (LMRA), 18 U.S.C. § 186(c)(5), and governed
by the Employment Retirement Income Security Act of 1974 (ERISA), 29 U.S.C.
§§ 1001-1461. Trust Fund A provides medical benefits, along with life and disability
insurance, while Trust Fund B provides dental benefits to its participants.


      2
       The Honorable Ann D. Montgomery, United States District Judge for the
District of Minnesota.

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       Tension's participation in the trust funds was memorialized in a Participation
Agreement, which contemplated a CBA would govern Tension's obligations to
contribute monthly premiums on behalf of its employees. Specifically, the
Participation Agreement indicated it "does not . . . modify or supersede any side
agreement entered into between an Employer and the Union, or alter any other
provision of the Labor Agreement [CBA]." The trust fund documents in turn
provided the contributions required of any employer were to be "governed by the . .
. applicable collective bargaining agreements." The CBA pertinent to this litigation
was effective between April 1, 2000, and March 31, 2004; Articles 26 (medical
benefits) and 27 (dental benefits) of the CBA governed the contributions to be made
to the trust funds.

      As required by the pertinent CBA and its predecessors, Tension has contributed
monthly premiums to the trust funds on behalf of each of its eligible employees,
including those married to each other, since it began participating in the trust funds
in 1990. On April 9, 2002, however, Tension entered into a Side Letter with the
Union purporting to amend the terms of the CBA. The Side Letter provided "[w]ith
respect to Article 26, if there are eligible employees married to one another, the
Employer will pay only one monthly premium, and the spouse would be covered as
a dependent on the other employee and would not pay any monthly medical
contribution amount." The Side Letter contained a similar provision regarding dental
benefits under Article 27.3 Both provisions contained the following condition: "If the
Union can provide documentation of a prior agreement where the Employer agreed
to pay for both spouses, the Employer will withdraw this subparagraph."




      3
      The Side Letter affected five married couples who worked for Tension – Petar
and Spomenka Budisa, Armin and Fatma Dzihic, Muharem and Nusreta Huskic,
Ahmet and Fikreta Jaganjac, and Norman and Sonja Marsolek.

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       Tension provided a copy of the Side Letter to the board of trustees who operate
the trust funds. The trustees discussed the Side Letter during a June 20, 2002,
meeting. In July 2002, Tension contributed just a single medical and dental monthly
premium to the trust funds for each of the five married couples affected by the Side
Letter. That same month, the trustees filed suit against Tension contending another
monthly medical and dental premium should be paid to the trust funds for each of the
five married couples. The parties brought cross-motions for summary judgment.
Tension filed a timely appeal after the district court granted the trustees' motion.

                                          II

       We review the district court's grant of summary judgment de novo "and will
affirm if we determine there are no genuine issues of material fact and that judgment
as a matter of law is appropriate." Bhd. of Locomotive Eng'rs v. Kansas City S. Ry.
Co., 

, 791 (8th Cir. 1994). In reviewing the grant of summary judgment,
we likewise review de novo the district court's interpretation of unambiguous contract
language. Winthrop Res. Corp. v. Eaton Hydraulics, Inc., 

, 470 (8th Cir.
2004).

       Although the trustees posit several reasons for affirming the district court, we
address only one – their contention the Side Letter contains a condition precedent that
nullifies its provision permitting one premium per married couple. The Side Letter
provided Tension would withdraw the one-premium provision if there was "a prior
agreement where the Employer agreed to pay for both spouses." The trustees argue
Tension's agreement to participate in the trust funds, and Tension's concomitant
obligation to provide premium payments for each of its participating employees,
satisfy this condition precedent and nullify the Side Letter.

      The language of the Side Letter is unambiguous and provides that if, prior to
the execution of the Side Letter, Tension had agreed to contribute monthly premiums

                                         -4-
for both spouses, the one-premium provision would be withdrawn. Tension's
agreement to participate in the trust funds satisfies this condition. By signing the
Participation Agreement, Tension "agree[d] to be bound by the Agreement and
Declaration of Trust establishing the Fund, together with any amendments thereto and
the rules and regulations adopted thereunder." The trust agreements in turn required
Tension to make "contributions at the level required by the Trustees . . . on behalf of
each participant who is to receive benefits under this Fund." (Emphasis added).

       It is undisputed employess married to each other were participants entitled to
receive benefits under the trust funds, as evidenced by Tension's continuous payment
of monthly premiums on behalf of each spouse since it began participating in the trust
funds in 1990. Thus, prior to the execution of the Side Letter, Tension clearly had a
contractual obligation to pay for both spouses pursuant to its participation in the
multiemployer trust funds. Tension's agreement to participate in the trust funds also
triggered a legal obligation to pay for each participant. See 29 U.S.C. § 1145 ("Every
employer who is obligated to make contributions to a multiemployer plan under the
terms of the plan or under the terms of a collectively bargained agreement shall . . .
make such contributions in accordance with the terms and conditions of such plan or
such agreement."). We conclude this contractual (and corresponding legal) obligation
was such "a prior agreement where the Employer agreed to pay for both spouses" and
therefore satisfies the Side Letter's nullifying condition.

       Tension argues this is an unreasonable reading of the Side Letter, because
Tension would effectively be precluded from ever negotiating the universe of benefit-
eligible employees for whom it must make a contribution to the trust funds. Tension
claims this "eternal status quo interpretation" is unreasonable because Tension's
"contribution obligation would be frozen from 1990 through eternity." Tension's
Brief at 26-27. See Bd. of Trs. of the Watsonville Frozen Food Welfare Trust Fund
v. Cal. Coop. Creamery, 

, 1426 (9th Cir. 1989) (suggesting a court



                                         -5-
cannot "ignore the possibility of any future negotiations between the company and
the union regarding employee benefits").

        Tension's argument is flawed. Our interpretation of the Side Letter's condition
is not the problem – the problem is the condition itself. Our holding does not forever
bar Tension from negotiating with the Union about which employees will be covered
by the trust funds. Certainly, Tension was not required to add the nullifying
condition, but having chosen to include the condition, we have no choice but to
interpret it according to its own terms. Without expressing any opinion on whether
the trust agreements would otherwise allow Tension to limit contributions to a single
monthly premium per employee couple, we note Tension is certainly free to negotiate
another Side Letter with the Union that does not include a condition referring to "a
prior agreement where the Employer agreed to pay for both spouses."

                                          III

      We affirm the judgment entered in the district court in favor of the trustees.
                      ______________________________




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