21. Equity (continued)  Notes to Consolidated Financial Statements  Years ended December 31, 2012 and 2011 d) Deferred Share Units and Restricted Share Units In 2012, we recognized compensation costs of $18 million for our DSUs and RSUs (2011 - $35 million recovery  recognized). The total liability for vested DSUs and RSUs as at December 31, 2012 was $55 million (2011 - $56 million).  The fair value of the DSUs and RSUs is based on the December 31, 2012 closing price of our Class B shares. At December 31, 2012, we had 1,293,778 DSUs (2011 - 1,241,662) and 818,314 RSUs outstanding (2011 - 714,862). 116 Teck 2012 Annual Report 2012 2011 Weighted Weighted  DSUs Average  DSUs Average  and RSUs Grant Date  and RSUs  Grant Date  (in 000’s)  Fair Value  (in 000’s)  Fair Value Total units at beginning of year  1,957 $ 30.72 3,683 $ 12.62 Granted 683 39.03 415 58.30 Forfeited (73) 43.62 (91) 16.13 Redeemed (518) 29.33 (2,101) 4.81 Dividends and other adjustments  63 32.24 51 21.50 Total units at end of year  2,112 $ 33.35 1,957 $ 30.72 Total DSU and RSU activity is as follows: Additional units are issued to holders of DSUs and RSUs to reflect dividends paid on Class B subordinate voting shares  and other adjustments to Class B shares. DSUs may only be redeemed within 12 months from the date a holder ceases to be an employee or director while  RSUs must vest no later than three years measured from the date of grant. Under our Deferred Share Unit (“DSU”) or Restricted Share Unit (“RSU”) plan, directors and employees may receive  either DSUs or RSUs, each of which entitle the holder to a cash payment equal to the market value of one Class B share  at the time they are redeemed. DSUs vest immediately for directors and after three years for employees. RSUs vest  no later than three years for employees and directors. On retirement the units are pro-rated to reflect the period of  vesting completed. Units vest on a pro-rata basis should employees be terminated without cause and are forfeited if  employees resign or are terminated with cause. Total share option compensation expense recognized for the year was $16 million (2011 - $14 million). Information relating to share options outstanding at December 31, 2012 is as follows: Weighted Average Remaining Life  Outstanding Share Options (in 000’s)  Exercise Price Range  of Outstanding Options (months) 1,491  $  4.15 – $ 12.35 74 6  $ 12.36 – $ 33.19 77 1,414  $ 33.20 – $ 35.53  32 3,096  $ 35.54 – $ 49.17 87 846  $ 49.18 – $ 58.80  98 6,853  $  4.15 – $ 58.80  74