This excerpt taken from the SYT 20-F filed Mar 16, 2005.
Intangible assets, all of which (except for goodwill) have a finite life, are valued at cost less accumulated amortization and any impairment losses. In the case of business combinations, the excess of the purchase price over the fair value of net identifiable assets acquired is recorded in the balance sheet as goodwill. Goodwill on acquisitions agreed before March 31, 2004 has been amortized to income on a straight-line basis over its useful life. Amortization is included principally within general and administrative expenses in the income statement. The amortization period is determined at the time of the acquisition, based upon the particular circumstances and reviewed annually. Currently, amortization periods range from 5 to 20 years. Goodwill relating to acquisitions arising prior to January 1, 1995 has been fully written off against shareholders equity.
Goodwill arising on acquisitions agreed after March 31, 2004 has not been amortized, but has been tested for impairment using a discount rate of 10%.
Management has determined the estimated useful life of goodwill for acquisitions agreed before March 31, 2004 based on its evaluation of the respective operations at the time of their acquisition, considering factors such as existing market share, potential sales growth and other factors inherent in the acquired companies.
Other acquired intangible assets are amortized on a straight-line basis over the following periods:
Trademarks are amortized on a straight line basis over their estimated economic or legal life, whichever is shorter. Useful lives assigned to acquired product rights are based on the maturity of the product and the estimated economic benefit that such product rights can provide.
Any value attributable to long-term supply agreements at preferential terms is amortized as part of cost of goods sold over the period of the supply agreement.