Accelerated Depreciation Exhibit 4.3 DEPRECIATION End of Year 1 2 3 4 5 6 Double- Declining $22.000 17,600 14,080 11,264 9,011 7,209 5,767 4,614 4,228* 4,227* Sum-of-the Years'-Digits $18,182 16,364 14,545 12,727 10,909 9,091 7,273 5,455 3,636 1,818 CUMULATIVE DEPRECIATION Double- Sum-of-the Declining Years'-Digits $ 22,000 $ 18,182 39,600 34,546 53,680 49,091 64,944 61,818 73,955 72.727 81,164 81,818 86,931 89,091 91,545 94,546 95,773 98,182 100,000 100,000 8 9 10 OOOOO *Reverts to straight-line Accelerated Depreciation Exhibit 4.3 DEPRECIATION End of Year 1 2 3 4 5 6 Double- Declining $22.000 17,600 14,080 11,264 9,011 7,209 5,767 4,614 4,228* 4,227* Sum-of-the Years'-Digits $18,182 16,364 14,545 12,727 10,909 9,091 7,273 5,455 3,636 1,818 CUMULATIVE DEPRECIATION Double- Sum-of-the Declining Years'-Digits $ 22,000 $ 18,182 39,600 34,546 53,680 49,091 64,944 61,818 73,955 72.727 81,164 81,818 86,931 89,091 91,545 94,546 95,773 98,182 100,000 100,000 8 9 10 OOOOO *Reverts to straight-line