OPINION OF THE COURT

This is an appeal of a summary judgment order. The relevant facts are set out in the District Court’s opinion. We find that there exists a genuine issue of material fact, and we therefore reverse the District Court’s summary judgement order and remand for trial.

In its complaint, Sookhoo alleged that he had a contract with Becton Dickinson and Company (“BD”) to be BD’s exclusive distributor in Trinidad. 1 Unfortunately for Sookhoo, he was unable to produce a written copy of any contract. In response to the complaint, BD submitted a motion to dismiss under FRCP 12(b)(6), arguing that any existing agreement was between Sookhoo and one of BD’s foreign subsidiaries. BD reasoned that as Sookhoo, Industrial, and BD’s foreign subsidiaries were all non-citizens, the District Court did not have diversity jurisdiction over the contract claim. After reviewing this motion, the District Court issued an order stating that previously it had “converted this motion into a motion for summary judgment.” The District Court then dismissed the case for lack of subject matter jurisdiction, ruling that Sookhoo failed to produce evidence that there was any agreement between him and BD and furthermore finding that, if any agreement existed, it was between Sookhoo and BD’s foreign subsidiary.

We conclude that an erroneous procedure was used in deciding the motion. First, a non-moving party must receive notice at least 10 days before a motion to dismiss under 12(b)(6) is converted into a motion for summary judgment. See Rose v. Bartle, 871 F.2d 331, 335, 342 (3d Cir. 1989); Hancock Industries v. Schaeffer, 811 F.2d 225, 229 (3d Cir. 1987) citing Crown Central Petroleum Corp. v. Wald-man, 634 F.2d 127, 129 (3d Cir. 1980). Here, such notice was not provided. Indeed, because the parties were not directed to provide supporting affidavits, as FRCP 56 requires, but instead were told to make informal responses, it appears that Sookhoo was misled into believing that BD’s motion would not be converted into a summary judgment motion. See App. 126; 146; Appellant’s Br. at 3. This prevented Sookhoo from gathering and presenting to the Court the proper evidence and arguments he needed to defend against a motion for summary judgment.

*827 Second, BD’s motion raised a merits issue, not an issue of subject matter jurisdiction. Simply put, by finding that there was no contractual relationship between the parties, the District Court was determining the merits of the case. This was important, as the standard for dismissing for a lack of jurisdiction is different from the standard for granting summary judgment. See Nesbit v. Gears Unlimited Inc., 347 F.3d 72, 76-77 (3d Cir. 2003).

In any event, we do not base today’s decision on the above grounds because we hold that there was a genuine issue of material fact left for trial and that BD was therefore not entitled to summary judgment. We exercise plenary review over a decision to grant summary judgment. “In considering a motion for summary judgment, a district court may not make credibility determinations or engage in any weighing of the evidence; instead, the non-moving party’s evidence is to be believed and all justifiable inferences are to be drawn in his favor.” Marino v. Indus. Crating Co., 358 F.3d 241, 247 (3d Cir. 2004)(quotation omitted). Furthermore, “[t]he burden is on the moving party to produce credible evidence that would entitle it to a directed verdict if not controverted at trial.” Pennbarr Corp. v. Insurance Co. of N. Am., 976 F.2d 145, 149-50 (3d Cir. 1992).

Here, we find that Sookhoo’s claim raises an issue of material fact. At bottom, the credibility of Sookhoo’s claim that a contract existed is an issue for the factfin-der. Not only has BD failed to show that no contract existed, but the record contains evidence of some form of distributorship agreement and possibly a long-standing, exclusive relationship between the parties. See, e.g., App. 94; 298-309. Furthermore, the one document in the record that suggests that the agreement was between Sookhoo and BD’s foreign subsidiary is insufficient for summary judgment. See App. 225-228. Not only is the document vague and without foundation, but the District Court erroneously ignored Sookhoo’s claim and evidence that BD’s foreign subsidiaries were so controlled by BD as to make them the same company. 2 See App. 279-286; App. 298-300; App. 418-419.

For these reasons, we reverse the summary judgment order and remand for further proceedings.