OPINION
Plaintiff Central States Pension Fund (the “Fund”) and a representative trustee appeal the district court’s grant of summary judgment for defendant employer General Materials (“General”) on the Fund’s claim for overdue pension payments. We affirm, holding that General’s duty to contribute to the Fund ended with the expiration of the collective bargaining agreement (“CBA”) referenced in the correlating Participation Agreement.
I. BACKGROUND
A.
General is a small, family-owned lumberyard in Jackson, Michigan. The Fund is an ERISA “multiemployer plan,” 29 U.S.C. § 1002(37), that collects pension contributions under labor agreements between employers and local unions. In 1969 General entered into the first of several CBAs with Local 164. These CBAs set pay scales and provided for union dues, welfare payments, and pension-fund payments. When signing each CBA, General and Local 164 also signed a Participation Agreement drafted by the Fund that remained substantively the same from contract to contract.
The Participation Agreement included provisions that incorporated and relied on the CBA’s terms. For example, the Participation Agreement bound General to the Fund’s Trust Agreement, which required each employer to “remit continuing and prompt contributions to the [Fund] as required by the applicable collective bargaining agreement.” Under paragraph 5(a) of the Participation Agreement, General would contribute a set amount for a set period “for its bargaining unit Employees pursuant to the terms of the collective bargaining agreement.” Paragraph 6 provided that payments would be made “only on behalf of employees in the collective bargaining unit.” Under paragraph 13, the Participation Agreement defined an “Employer” and “Employee” in terms of their responsibilities under the CBA.
Pursuant to the Participation Agreement, General reported the work history of eligible employees and paid monthly contribution invoices that contained a clause (the “Certification Clause”) stating that General “hereby reaffirms [its] obligation to make contributions required by the Collective Bargaining Agreement and further represents that all employees eligible to participate in the Fund ... are being reported.... ” The Participation Agreement also provided that it would “continue in full force and effect” absent written notice of termination.
From 1969 until 1991, these CBAs and Participation Agreements required General to make monthly pension contributions
When the 1991 CBA expired on December 31, 1993, General had only two union employees, James Smith and Roy Swihart. Although General continued to contribute to the Fund for Swihart and Smith — under an alleged oral agreement with Local 164 — it entered into no other CBAs or Participation Agreements but instead instituted its own pension and profit-sharing plan, contributing to that plan for its nonunion employees.
B.
After General rebuffed the Fund’s attempted audit by providing only Swihart’s records, the Fund filed a complaint for overdue contributions. General then sent a written request to the Fund’s Trustees, asking for a refund of the contributions it paid on behalf of Swihart and Smith after the 1991 CBA expired. The Trustees denied the request and General filed a counterclaim for the refund.
Both sides filed motions for summary judgment, and the Fund then filed a Federal Rule of Civil Procedure 37(c)(1) motion to strike portions of General’s response to the Fund’s motion for summary judgment. After a hearing, without discussing the motion to strike, the district court held that the parties’ conduct suggested “an understanding ... that the 1991 CBA did not remain in full force and effect by way of the 1991 Participation Agreement,” but terminated on December 31, 1993. The court then granted summary judgment to General on the Fund’s claims for overdue pension payments. As for General’s counterclaim, the court granted summary judgment for the Fund, holding that because “[General’s union] employees realized a significant increase in the pension benefits paid to them,” the Trustees did not act arbitrarily or capriciously in denying General a refund. Both parties appealed.
II. ANALYSIS
We review de novo a district court’s decision to grant summary judgment, affirming where the evidence, viewed in the light most favorable to the non-movant, demonstrates that “there is no genuine issue as to any material fact and that the movant is entitled to judgment as a matter of law.” Fed.R.Civ.P. 56(c). The Fund argues that the court erred because: (1) the 1991 Participation Agreement obligated General to contribute; (2) the Certification Clause obligated General to contribute; and (3) the court failed to rule on the Fund’s motion to strike. We hold that neither the 1991 Participation Agreement nor the Certification Clause obligated General to contribute after the 1991 CBA expired, and the court’s failure to rule on the motion to strike is harmless error.
A.
The Fund contends that the 1991 Participation Agreement required General
First, in Behnke, the duty to contribute continued after a CBA expired because employer Behnke entered into a Participation Agreement and Trust Agreement during the negotiation period for a new CBA. The Participation Agreement in Behnke, effectively the same as the one involved here, incorporated language from the Trust Agreement providing that “[t]he obligation to make such contributions shall continue during periods when the collective bargaining agreement is being negotiated.” Id. at 461 (emphasis added). In other words, the Participation Agreement alone did not extend Behnke’s duty to contribute — the Participation Agreement became significant only because it incorporated the Trust Agreement’s provision for continuing contributions during negotiations for a new CBA. See id. (“The Trust Agreement incorporated into the Participation Agreement extends the obligation.”) (emphasis added). General entered into no such negotiations after the 1991 CBA expired.
Second, unlike the Participation Agreement in
Behnke,
the 1991 Participation Agreement can be understood only by reference to the contemporaneously signed 1991 CBA. General and Local 164 signed the 1991 CBA and 1991 Participation Agreement on the same day, unlike the Participation Agreement in
Behnke,
which Behnke and the union signed after one CBA expired and before the next became effective.
1
The fact that General signed the two documents on the same day supports the view that the 1991 Participation Agreement cannot be understood apart from the 1991 CBA. In fact, the terms of the 1991 Participation Agreement depend wholly on the 1991 CBA. The 1991 Participation Agreement sets forth contribution rates dictated by the 1991 CBA, defines covered employees as those employed under the terms of the 1991 CBA, and defines an employer as one bound by the 1991 CBA. After the 1991 CBA expired, the orphan 1991 Participation Agreement became incognizable.
Cf. Laborers Health & Welfare Trust Fund v. Leslie G. Delbon, Inc.,
B.
We likewise find lacking the Fund’s contention that the Certification Clause included in its monthly bills extended General’s duty to contribute. For support, the Fund points to a Seventh Circuit decision and an unpublished decision from the Northern District of Illinois. In
Bricklayers Local 21 v. Banner Restoration, Inc.,
The Fund also cites
Central States Pension Fund v. Kabbes,
No. 02 C 1809,
C.
Finally, the Fund contends that the district court erred by not ruling on its motion to strike. Generally, district courts should resolve discovery motions before granting summary judgment.
Lexicon, Inc. v. Safeco Ins. Co. of Am.,
III. CONCLUSION
Because the district court properly granted summary judgment for General as to the Fund’s claim for overdue pension contributions, we affirm.
Notes
. After a CBA expired on March 31, 1982, Behnke and the local union immediately began negotiations for a new CBA.
Behnke,
