Rubicon Technology Culture Company

Mr. Timothy E. Brog has been Chief Executive Officer and President of Rubicon Technology, Inc. since March 17, 2017. Mr. Brog serves as the President of Locksmith Capital Management LLC. Mr. Brog served as the Chief Executive Officer of Peerless Systems Corp. since August 26, 2010 until March 1, 2015. Mr. Brog served as the Managing Director and Portfolio Manager of Locksmith Capital Management LLC since September 2007 until August 2010. He served as Chief Executive officer and Co-Portfolio Manager of Peerless Value Opportunity Fund and also served as its President since 2011. Mr. Brog served as the President and Portfolio Manager of Pembridge Capital Management LLC from June 2004 to September 2007 Director of E2 Investment Partners, L.L.C. from March 2007 to July 2008. He served as the Portfolio Manager of Pembridge Value Opportunity Fund since June 2004 until September 2007. Mr. Brog served as a Co-Managing Director of The Edward Andrews Group Inc., from 1996 to 2007. From 1989 to 1995, he served as a Corporate Finance and Mergers and Acquisition Associate at the law firm Skadden, Arps, Slate, Meagher & Flom LLP. He served as an Acting Chairman of Peerless Systems Corp. since July 09, 2007. He served as the Chairman of Peerless Systems Corp. since June 2008 until March 1, 2015. He served as Chairman of the Board at Deer Valley Corporation from October 2014 to April 2015. He has been a Director of Rubicon Technology, Inc. since May 31, 2016. Mr. Brog has been a Director of Eco-Bat Technologies Limited since October 2007. He has been Trustee of Peerless Value Opportunity Fund since 2011. He served as a Director of Deer Valley Corporation from October 06, 2014 to April 15, 2015 and Peerless Systems Corp. from July 9, 2007 to March 1, 2015 and The Topps Company, Inc. since July 2006 until October 2007. He holds a Juris Doctorate from Fordham University School of Law in 1989 and a BA from Tufts University in 1986.

Mr. William F. Weissman, also known as Bill, has been Consultant of Rubicon Technology, Inc. since March 17, 2017. Mr. Weissman served as the Chief Executive Officer and President of Rubicon Technology, Inc. from December 15, 2014 to March 16, 2017. Mr. Weissman served as an Interim Chief Executive Officer of Rubicon Technology, Inc. from September 2014 to December 15, 2014. He served as the Chief Financial Officer, Secretary and Treasurer of Rubicon Technology, Inc. from July 2007 to December 15, 2014. From 1995 to 2007, Mr. Weissman served in various capacities at Kanbay International, Inc. where he serfed as Executive Vice President since January 2005; Chief Financial Officer since 1995; Vice President since 1995; Secretary from August 2000 to September 26, 2006; and also Chief Accounting Officer. Mr. Weissman also served similar senior positions in and served as a Manager of Kanbay LLC from December 1997 to August 2000. Mr. Weissman served as a Director of Rubicon Technology, Inc. from December 15, 2014 to March 17, 2017. He serves as a Member of Finance & Business Policy Committee at The Technology Association of America (Also called as American Electronics Association). Mr. Weissman holds Bachelor of Science in Business Administration from Seton Hall University in South Orange, N.J.

Ms. Mardel A. Graffy has been the Chief Financial Officer, Treasurer and Secretary of Rubicon Technology Inc. since December 2014. Ms. Graffy served as Principal Financial Officer of Rubicon Technology Inc. from 2006 to July 30, 2007. She joined Rubicon Technology in 2005 and served as of Vice President of Finance. In September 2014 she was Vice President of Financial Operations. Prior to her work with Rubicon, Ms. Graffy worked for FMC Technologies and KPMG.

Mr. Hany Tamim has been the Chief Operating Officer at Rubicon Technology, Inc. since October 16, 2015. Mr. Tamim has responsibility for all global manufacturing operations of Rubicon Technology. Mr. Tamim has extensive experience in managing crystal growth and wafer manufacturing operations in both Malaysia and the United States, including 24 years with SunEdison (formerly MEMC), where his experience included leadership roles in global cost management, plant management and process engineering. He has Bachelor and Master of Science degrees in Engineering from the University of North Carolina.

Inga Slavutsky serves as the Chief Financial Officer for Rubicon Technology. Inga started at Rubicon Technology in June of 2018. Inga is based in the Greater Chicago Area.