[(1) NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Polar Securities Inc. ------------------------------------------------------------------------------ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [X] (b) [ ] ------------------------------------------------------------------------------ (3) SEC USE ONLY ------------------------------------------------------------------------------ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Canada ------------------------------------------------------------------------------ NUMBER OF (5) SOLE VOTING POWER -0- SHARES --------------------------------------------------- BENEFICIALLY (6) SHARED VOTING]

[Schedule 13G CUSIP No. 67107W100 PAGE 8 OF 11 B.tairis Offshore (a) Amount beneficially owned: 613,500 (b) Percent of class: 1.7% (c) Number of shares to which such person has: (i) sole power to vote or to direct the vote: 0 Shares. (ii) shared power to vote or to direct the vote: 613,500 Shares. (iii)]