IMPORTANT If you are in any doubt about any contents of this prospectus, you should obtain independent professional advice. OTO Holdings Limited 豪特保健控股有限公司 (incorporated in the Cayman Islands with limited liability) GLOBAL OFFERING Number of Offer Shares : 80,000,000 Shares Number of Hong Kong Offer Shares : 8,000,000 Shares (subject to adjustment) Number of International Placing Shares : 72,000,000 Shares (subject to adjustment and the Over-allotment Option) Maximum Offer Price : HK$1.60 per Offer Share payable in full on application in Hong Kong dollars, subject to refund, plus brokerage of 1%, SFC transaction levy of 0.003% and Stock Exchange trading fee of 0.005% Nominal value : US$0.01 per share Stock code : 6880 Sole Global Coordinator, Sole Sponsor, Sole Bookrunner and Sole Lead Manager Co-Lead Managers Hong Kong Exchanges and Clearing Limited, The Stock Exchange of Hong Kong Limited and Hong Kong Securities Clearing Company Limited take no responsibility for the contents of this prospectus, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this prospectus. A copy of this prospectus, having attached thereto the documents specified in the section headed “Documents delivered to the Registrar of Companies in Hong Kong and Available for Inspection” in Appendix VII to this prospectus, has been registered by the Registrar of Companies in Hong Kong as required by section 342C of the Companies Ordinance (Chapter 32 of the Laws of Hong Kong). The Securities and Futures Commission and the Registrar of Companies in Hong Kong take no responsibility for the contents of this prospectus or any other documents referred to above. The Offer Price is expected to be fixed by agreement between the Sole Global Coordinator (for itself and on behalf of the Underwriters) and the Company on the Price Determination Date. The Price Determination Date is expected to be on or around 6 December 2011 and, in any event, not later than 8 December 2011. The Offer Price will be not more than HK$1.60 per Offer Share and is currently expected to be not less than HK$1.28 per Offer Share unless otherwise announced. Investors applying for Hong Kong Offer Shares must pay, on application, the maximum Offer Price of HK$1.60 for each Offer Share together with a brokerage of 1%, SFC transaction levy of 0.003% and Stock Exchange trading fee of 0.005%, subject to refund if the Offer Price as finally determined should be lower than HK$1.60. The Sole Global Coordinator (for itself and on behalf of the Underwriters) may, with the consent of the Company, reduce the number of Offer Shares being offered pursuant to the Global Offering and/or the indicative Offer Price range below that stated in this prospectus (which is HK$1.28 to HK$1.60 per Offer Share) at any time on or prior to the morning of the last day for lodging applications under the Hong Kong Public Offer. In such a case, notices of the reduction in the number of Offer Shares and/or the indicative Offer Price range will be published in the South China Morning Post (in English) and the Hong Kong Economic Times (in Chinese) and on the Company’s website at www.otobodycare.com and the Stock Exchange’s website at www.hkexnews.hk not later than the morning of the day which is the last day for lodging applications under the Hong Kong Public Offer. If applications for the Hong Kong Offer Shares have been submitted prior to the day which is the last day for lodging applications under the Hong Kong Public Offer, then even if the number of Offer Shares and/or the Offer Price range is so reduced, such applications cannot be subsequently withdrawn. Further information is set forth in the sections headed “Structure of the Global Offering” and “How to Apply for the Hong Kong Offer Shares” in this prospectus. If, for any reason, the Offer Price is not agreed among the Company and the Sole Global Coordinator (for itself and on behalf of the Underwriters), the Global Offering (including the Hong Kong Public Offer) will not proceed and will lapse. The obligations of the Hong Kong Underwriters under the Hong Kong Underwriting Agreement to subscribe for, and to procure applicants for the subscription for, the Hong Kong Offer Shares, are subject to termination by the Sole Global Coordinator (for itself and on behalf of the Hong Kong Underwriters) if certain events arise prior to 8:00 a.m. (Hong Kong time) on the Listing Date. Such events are set out in the section headed “Underwriting — Underwriting Arrangements and Expenses — Grounds for termination” in this prospectus. It is important that you refer to that section for further details. 1 December 2011 EXPECTED TIMETABLE(1) Latest time for lodging PINK application form .........4:00 p.m. on Monday, 5 December 2011 Latest time to complete electronic applications under HK eIPO WHITE Form service through the designated website www.hkeipo.hk(3) .......................11:30 a.m. on Tuesday, 6 December 2011 Application lists open(2) ..........................11:45 a.m. on Tuesday, 6 December 2011 Latest time for lodging WHITE and YELLOW Application Forms ............................12:00 noon on Tuesday, 6 December 2011 Latest time to complete payment of HK eIPO WHITE Form applications by effecting internet banking transfers or PPS payment transfers .........................12:00 noon on Tuesday, 6 December 2011 Latest time to give electronic application instructions to HKSCC(4) ......................12:00 noon on Tuesday, 6 December 2011 Application lists close(2) .........................12:00 noon on Tuesday, 6 December 2011 Expected Price Determination Date(5) ...........................Tuesday, 6 December 2011 Announcement of (i) the Offer Price; (ii) the indication of the level of interest in the International Placing; (iii) the level of applications in the Hong Kong Public Offer; (iv) the basis of allotment of Hong Kong Offer Shares under the Hong Kong Public Offer; and (v) the number of Offer Shares reallocated, if any, between the Hong Kong Public Offer and the International Placing to be published in South China Morning Post (in English) and Hong Kong Economic Times (in Chinese) and on the Stock Exchange’s website at www.hkexnews.hk and the Company’s website at www.otobodycare.com on or before ....................... Monday, 12 December 2011 Results of allocations in the Hong Kong Public Offer (with successful applicants’ identification documents numbers, where appropriate) to be available through a variety of channels (see the section headed “How to Apply for the Hong Kong Offer Shares — Results of allocations”) from .........Monday, 12 December 2011 Results of allocations in the Hong Kong Public Offer to be available at www.tricor.com.hk/ipo/result with “search by ID” function...................................Monday, 12 December 2011 Despatch of share certificates in respect of wholly or partially successful applications and despatch of HK eIPO White Form e-Auto Refund payment instructions/ refund cheques in respect of wholly or partially successful application on or before (6) (7) (8) (9) ................. Monday, 12 December 2011 Despatch of share certificates or deposit of share certificates into CCASS and refund cheques in respect of wholly or partially successful applications on or before (6) (7) (8) (9) ......... Monday, 12 December 2011 Dealings in Offer Shares on the Stock Exchange to commence at 9:00 a.m. on ................................Tuesday, 13 December 2011 —i— EXPECTED TIMETABLE(1) (1) All dates and times refer to Hong Kong local dates and times, except as otherwise stated. Details of the structure of the Global Offering, including its conditions, are set out in the section headed “Structure of the Global Offering” of this prospectus. (2) If there is a “black” rainstorm warning or a tropical cyclone warning signal number 8 or above in force in Hong Kong at any time between 9:00 a.m. and 12:00 noon on Tuesday, 6 December 2011, the application lists will not open or close on that day. Further information is set forth in the section headed “How to Apply for the Hong Kong Offer Shares — Effect of bad weather conditions on the opening of the application lists” of this prospectus. (3) Applicants will not be permitted to submit their application to the HK eIPO White Form Service Provider through the designated website www.hkeipo.hk after 11:30 a.m. on the last day for submitting applications. If applicants have already submitted their application and obtained an application reference number from the designated website prior to 11:30 a.m., they will be permitted to continue the application process (by completing payment of application monies) until 12:00 noon on the last day for submitting applications, when the application lists close. Applicants who apply for Hong Kong Offer Shares by completing HK eIPO White Form should refer to the section headed “How to Apply for the Hong Kong Offer Shares — How to apply through the HK eIPO White Form service” of this prospectus. (4) Applicants who apply for Hong Kong Offer Shares by giving electronic application instructions to HKSCC should refer to the section headed “How to Apply for the Hong Kong Offer Shares — How to apply by giving electronic application instructions to HKSCC” of this prospectus. (5) Please note that the Price Determination Date, being the date on which the Offer Price is to be determined, is expected to be on or about Tuesday, 6 December 2011 and, in any event, not later than Thursday, 8 December 2011. If, for any reason, the Offer Price is not agreed among the Company (for itself and on behalf of the Selling Shareholders) and the Sole Global Coordinator (for itself and on behalf of the Underwriters), the Global Offering (including the Hong Kong Public Offer) will not proceed and will lapse.