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16. Stock options | 12 Months Ended
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Dec. 31, 2014
Notes to Financial Statements |
Stock options | Effective November 22, 2014, the Company entered into a stock option contract with a Business Development Manager of Yixing Pact Environmental Technology Co., Ltd, granting the optionee the right to purchase 20,692 Ordinary Shares, 1% of the Company’s issued and outstanding shares, at an exercise price of $3.484 per share. The exercise price was determined by the average closing price of the Company’s as reported by NASDAQ for a ten day period prior to the end of the Business Development Manager’s probationary period on November 22, 2014, the effective date of the stock option contract. The stock options granted are exercisable three years after the effective date and terminate five years after the effective date. In the event of the optionee’s termination, except for his resignation, the options may be exercisable within three months of the termination. In the event of optionee’s death, retirement or disability, he or his legal representative shall have up to one year to exercise the option.
| 2002 Employees’ Stock Option and Incentive Plan and 2002 Officers’ and Directors’ Stock Option and Incentive Plan
A total of 53,454 shares and 152,727 shares of ordinary share have been reserved for issuance under the Company’s 2002 Employees’ Stock Option and Incentive Plan (the “2002 Employee Stock Options”) and 2002 Officers’ and Directors’ Stock Option and Incentive Plan (the “2002 D&O Stock Options”), respectively. Both 2002 Employee Stock Options and the 2002 D&O Stock Options provided for the grant of options to its employees as the Company’s Chairman of the Board of Directors and Chief Executive Officer may direct. During the year ended December 31, 2011, 2,291 options and 7,636 options with exercise price of US$4.19 and US$3.18 per share, respectively, were cancelled. During the year ended December 31, 2012, all the remaining unexercised options expired in November 2012. The Company estimate the fair value of the options granted under the Binomial option pricing model. Changes in outstanding options under various plans mentioned above were as follows:
|  | 2014 |  |  | 2013 |  |  | 2012 |
|  | Number of options |  |  | Weighted average exercise price |  |  | Number of options |  |  | Weighted average exercise price |  |  | Number of options |  |  | Weighted average exercise price |
|  |  |  |  | US$ |  |  |  |  |  | US$ |  |  |  |  |  | US$ |
Outstanding, beginning of year |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 36,255 |  |  |  | 3.36 |
Granted |  |  | 20,692 |  |  |  | 3.44 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Cancelled/Expired |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (36,255 | ) |  |  | (3.36 | )
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Outstanding, end of year |  |  | 20,692 |  |  |  | 3.44 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Exercisable, end of year |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
As of December 31, 2014, there were 20,692 options outstanding. As of December 31, 2013 and 2012, there was no options outstanding. As of December 31, 2014 and 2013, there was no unrecognised stock-based compensation expense related to unvested stock options. The Group adopted the provisions of ASC 718-10, which requires us to recognise expense related to the fair value of our stock-based compensation awards, including employee stock options. The Binomial option pricing model is used to estimate the fair value of the options granted. This requires the input of subjective assumptions, including the expected volatility of stock price, expected option term, expected risk-free rate over the expected option term and expected dividend yield rate over the expected option term. Because changes in subjective input assumptions can materially affect the fair value estimate, in directors’ opinion, the existing model may not necessarily provide a realisable measure of the fair value of the stock options. Expected volatility is based on historical volatility in the 180 days prior to the issue of the options. Expected option term and dividend yield rate are based on historical trends. Expected risk-free rate is based on US Treasury securities with similar maturities as the expected terms of the options at the date of grant.

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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