SGL 201703200034A Posting of Stillwater transaction circular and Notice of General Meeting Sibanye Gold Limited Incorporated in the Republic of South Africa Registration number 2002/031431/06 Share code: SGL ISIN – ZAE000173951 Issuer code: SGL (“Sibanye Gold”, “Sibanye” or “the Group”) Posting of Stillwater transaction circular and Notice of General Meeting Westonaria 20 March 2017: Sibanye Gold Limited (“Sibanye”), is pleased to advise that a circular (“Circular”) containing, inter alia, the details of the proposed acquisition of Stillwater Mining Company (NYSE: SWC) (“Stillwater”), which was announced on 9 December 2016 (the “Transaction”) and a notice convening the general meeting (“General Meeting”) and a form of proxy, has been posted to Sibanye Shareholders today, 20 March 2017. A copy of the Circular can be found at https://www.sibanyegold.co.za/investors/manage-your-shares/company-documents- circulars. Notice of General Meeting Notice is hereby given to Sibanye Shareholders that a General Meeting of Sibanye Shareholders will be held at the Sibanye Gold Academy, Rietkloof 349, Glenharvie, 1786, South Africa, on Tuesday, 25 April at 09:00 (CAT) to consider and, if deemed fit, pass, with or without amendment, the resolutions set out in the Circular to, inter alia, give effect to the Transaction. The salient dates and times relating to the General Meeting are set out below: Last day and time to give notice to participate in the General Meeting electronically by 09:00 Friday, 7 April 2017 (CAT) on ...................................... Last day to trade (“LDT”) in order to be eligible Monday, 10 April 2017 to participate and vote at the General Meeting Record date to determine Sibanye Shareholders eligible to participate in and vote at the General Thursday, 13 April 2017 Meeting ....................................... Last day and time to lodge forms of proxy with the Friday, 21 April 2017 Transfer Secretaries, by 09:00 (CAT) on ....... General Meeting of Sibanye Shareholders at 09:00 Tuesday, 25 April 2017 (CAT) on ...................................... 1 Results of General Meeting released on SENS ... Tuesday, 25 April 2017 Results of General Meeting published in the South Wednesday, 26 April 2017 African press ................................. Forward-looking Statements This announcement includes “forward-looking statements” within the meaning of the “safe harbour” provisions of the United States Private Securities Litigation Reform Act of 1995. These forward-looking statements, including, among others, those relating to expected timings of the Transaction (including completion), wherever they may occur in this announcement, are necessarily estimates reflecting the best judgment of the senior management and directors of Sibanye, and involve a number of known and unknown risks and uncertainties that could cause actual results, performance or achievements of the Group to differ materially from those suggested by the forward-looking statements. As a consequence, these forward-looking statements should be considered in light of various important factors that could cause the actual results to differ materially from estimates or projections contained in the forward-looking statements including, without limitation: Sibanye’s or Stillwater’s ability to complete the proposed Transaction; the inability to complete the proposed Transaction due to failure to obtain approval of the shareholders of Sibanye or Stillwater or other conditions in the merger agreement; and the inability to complete the proposed Transaction due to failure to obtain CFIUS clearance. Further details of potential risks and uncertainties affecting Sibanye are described in Sibanye’s filings with the JSE and the SEC, including in Sibanye’s Annual Report on Form 20-F, for the fiscal year ended 31 December 2015 and the Integrated Annual Report 2015. These forward-looking statements speak only as of the date of this announcement. Neither Sibanye nor Stillwater undertake any obligation to update publicly or release any revisions to these forward-looking statements to reflect events or circumstances after the date of this announcement or to reflect the occurrence of unanticipated events. Additional Information and Where to Find It This announcement does not constitute the solicitation of any vote, proxy or approval. In connection with the proposed Transaction, Sibanye has posted the Circular to its shareholders and Stillwater has filed with the Securities and Exchange Commission (the “SEC”) relevant materials, including a proxy statement. The Circular and other relevant documents have been sent or otherwise disseminated to Sibanye’s shareholders and contain important information about the proposed Transaction and related matters. SHAREHOLDERS OF SIBANYE ARE ADVISED TO READ THE CIRCULAR AND OTHER RELEVANT DOCUMENTS, BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. The proxy statement and other relevant documents have been sent or otherwise disseminated to Stillwater’s shareholders and contain 2 important information about the proposed Transaction and related matters. SHAREHOLDERS OF STILLWATER ARE ADVISED TO READ THE PROXY STATEMENT THAT HAS BEEN FILED AND OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. Sibanye shareholders may obtain free copies of the Circular by going to Sibanye’s website at www.sibanyegold.co.za. The proxy statement and other relevant documents may also be obtained, free of charge, on the SEC's website (http://www.sec.gov). Stillwater shareholders may obtain free copies of the proxy statement from Stillwater by going to Stillwater’s website at https://stillwatermining.com/. Participants in the Solicitation Sibanye, Stillwater and their respective directors and officers may be deemed participants in the solicitation of proxies of Sibanye’s and Stillwater’s respective shareholders in connection with the proposed Transaction. Sibanye’s shareholders and other interested persons may obtain, without charge, more detailed information regarding the directors and officers of Sibanye in Sibanye’s Annual Report on Form 20-F, for the fiscal year ended 31 December 2015, which was filed with the SEC on 21 March 2016. Stillwater’s shareholders and other interested persons may obtain, without charge, more detailed information regarding the directors and officers of Stillwater in Stillwater’s Annual Report on Form 10-K for the fiscal year ended 31 December 2015, which was filed with the SEC on 22 February 2016. Additional information regarding the interests of participants in the solicitation of proxies in connection with the proposed Transaction is included in the proxy statement that Stillwater has filed with the SEC. About Sibanye Gold Limited Sibanye is an independent mining group domiciled in South Africa, which currently owns and operates gold, uranium and platinum group metals (“PGMs”) operations and projects throughout the Witwatersrand Basin and the western limb of the Bushveld Complex in South Africa. In addition, Sibanye is a 50 percent joint venture partner in Mimosa, a PGM operation in Zimbabwe. Sibanye is the largest individual producer of gold from South Africa, one of the ten largest gold producers globally and the world’s fifth largest producer of PGMs. Sibanye’s corporate office is located close to Westonaria, in the province of Gauteng, near its West Wits operations. Sibanye’s shares are traded on the JSE under the symbol “SGL” and its American Depositary Receipts are traded on the NYSE under the symbol “SBGL”. About Stillwater Mining Company Stillwater Mining Company is the only U.S. miner of PGMs and the largest primary producer of PGMs outside of South Africa and the Russian Federation. PGMs are rare precious metals used in a wide variety of applications, including automobile catalysts, fuel cells, hydrogen purification, electronics, jewelry, dentistry, medicine and coinage. Stillwater is engaged in the development, extraction and processing of PGMs from a geological formation in south-central Montana recognized 3 as the J-M Reef. The J-M Reef is the only known significant source of PGMs in the U.S. and the highest-grade PGM resource known in the world. Stillwater also recycles PGMs from spent catalytic converters and other industrial sources. Stillwater owns the Marathon PGM-copper deposit in Ontario, Canada, and the Altar porphyry copper-gold deposit located in the San Juan province of Argentina. Stillwater’s shares are traded on the New York Stock Exchange under the symbol 'SWC'. Sibanye Investor Relations Contact: James Wellsted SVP Investor Relations Sibanye Gold Limited +27 (0) 83 453 4014 firstname.lastname@example.org Sponsor: J.P. Morgan Equities South Africa Proprietary Limited 4 Date: 20/03/2017 03:52:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. 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