Order, Supreme Court, New York County (Leland DeGrasse, *363J.), entered June 6, 2006, which denied plaintiffs’ motion to confirm, and granted defendant-respondent’s cross motion to reject, the report of the Special Referee to supervise disclosure, affirmed, with costs.
The Gembel Group is a multinational diamond conglomerate which owns companies throughout the world. Gembel Israel 1982 (Gembel) is an Israeli company owned by Prabodh Mehta, Rashmi Mehta, Kismore Mehta, and Vijay Mehta.1 Gembel owns Occidental Gems, Inc. (Occidental), a New York corporation in the business of diamond sales and trading, and a defendant here. Plaintiffs are various insurance underwriters who issued policies to the Gembel Group and other companies affiliated with them, including Occidental. Anita Mehta Vyas, sister of the four Mehta brothers, became involved in the operations at Occidental after the departure of Pravin Mehta. In June 1997, Occidental brought an action against Interings,2 Americast and Prakash Mehta to recover $9,096,637, for polished diamonds allegedly sold to Americast and Interings from 1986 to 1996. In August 1998, Occidental served an amended complaint adding Pravin Mehta as a defendant, and adding causes of action for civil RICO violations against Pravin and Prakash.
The Gembel Group and Occidental then filed a statement of claim with plaintiffs seeking $10,478,776, for losses including diamonds stolen and delivered to defendant Interings, Inc. They asserted that the jewel theft was the result of infidelity by Pravin and Prakash Mehta. Plaintiffs refused to pay the claim and then brought this action for a declaration that the losses claimed by Occidental were not fortuitous, and thus were not covered under the subject policies. Defendant Occidental answered and denied the allegations in the complaint. It asserted various affirmative defenses and a counterclaim for the full amount of the claimed loss under the insurance policies.
The case is presently in discovery. Pursuant to CPLR 3104, the IAS court directed that all disclosures be supervised by a Special Referee. Plaintiffs moved to compel the appearance of Vijay Mehta for a deposition in New York. He is a member of the Gembel Group who lives in Belgium. Also, plaintiffs sought production of documents from an arbitration which was pending in Belgium involving Gembel’s owners. Occidental is not a party to that Belgian arbitration.
*364After considering submissions and arguments on the motion, the Special Referee issued a report recommending that Vijay Mehta be produced in New York to be deposed, and that the requested documentation from the Belgian arbitration be turned over to plaintiffs. Plaintiffs moved to confirm the report and defendant Occidental cross-moved for an order vacating it. The IAS court vacated the Special Referee’s report and this appeal ensued.
The IAS court’s determinations when overseeing discovery will not be disturbed absent an improvident exercise of discretion (Brooklyn Union Gas Co. v American Home Assur. Co., 23 AD3d 190 [2005]; Ulico Cas. Co. v Wilson, Elser, Moskowitz, Edelman & Dicker, 1 AD3d 223, 224 [2003]). Part of the exercise of this discretion is to determine whether a Special Referee’s recommendations are supported by the record (see Di Mascio v General Elec. Co., 307 AD2d 600, 601 [2003]; Riverside Capital Advisors v First Secured Capital Corp., 292 AD2d 515 [2002]).
Here, the motion court properly determined that the evidence did not support the Special Referee’s recommendations. Vijay Mehta should not be required to travel to New York to submit to a deposition. He is not an officer, director, member, agent or employee of Occidental (CPLR 3101 [a] [1]). Nor is there any evidence that Occidental had control over Vijay Mehta sufficient to compel his appearance in New York (see Broyles & Broyles v Rainbow Sq., 125 AD2d 933 [1986]; and see Two Clinton Sq. Corp. v Computerized Recovery Sys., 63 AD2d 853 [1978]).
Moreover, Prabodh Mehta, Vijay’s brother, was subjected to an extended deposition. His testimony revealed that Prabodh and Vijay were privy to the same information regarding operations at Occidental, and, specifically that they both pressed Anita to file a claim for insurance. Anita Mehta Vyas, the president of Occidental, was also deposed. She testified that Prabodh and Vijay told her to put together the relevant documents and meet with attorneys to pursue the insurance claim. Anita testified that she thereafter had her attorneys prepare the insurance claim. The testimony of Prabodh and Anita indicates that these witnesses had knowledge equivalent to that possessed by Vijay with respect to Occidental’s insurance claim. Thus, the court properly concluded that Vijay did not possess nonduplicative “material and necessary” information pertinent to the disputed issues (cf. Pearce v FJC Sec. Servs., 298 AD2d 242 [2002]).
The motion court also properly rejected the Special Referee’s recommendation that respondent produce documents and testimony from a confidential arbitration proceeding in Belgium, to which Occidental was not a party. That arbitration concerns *365a dispute among the four brothers regarding their respective interests in the Gembel Group. Given the important public interest in protecting the rights of parties who submit to confidential arbitration, the court correctly concluded that no aspect of the Belgian arbitration, to which Occidental is not a party, may be subject to compulsory disclosure in this litigation. Concur—Mazzarelli, J.P., Catterson and Malone, JJ.
. The four owners of Gembel Israel 1982 are siblings. They are not related to defendants Pravin Mehta and Prakash Mehta.
. Interings is a New York Company specializing in the manufacture and sale of diamond jewelry. Prawn Mehta set up Interings to bring his brother Prakash from India, and to provide employment for him. Occidental was Interings’ main diamond supplier.