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Share capital | 12 Months Ended
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Dec. 31, 2018
Disclosure of share capital, reserves and other equity interest [Abstract] |
Share capital | Share capital The Company’s authorized share capital consists of an unlimited number of common shares and an unlimited number of preferred shares. At December 31, 2018, the Company had 994,621,917 common shares outstanding, including 1,705,000 common shares held in trust under the Company’s Incentive Plan (described below). No preferred shares were outstanding. During 2018, the Company received $22 million (2017 - $26 million) pursuant to the exercise of 12 million (2017 – 13 million) stock options. Stock options During 2018, approximately 25 million stock options were granted to employees and directors with exercise prices ranging from Cdn. $2.94 to Cdn. $3.44 per share. These stock options have a term of five years and vest over a period of up to three years. The estimated fair value when granted of these options totalling $26 million is being recognized over the vesting period. The fair value was calculated using the Black-Scholes option pricing model based on a risk-free annual interest rate of up to 2.0%, an expected life of up to 3 years, an expected volatility of 56%, and a dividend yield rate of nil. During 2017, approximately 23 million stock options were granted to employees and directors with exercise prices ranging from Cdn. $3.27 to Cdn. $4.05 per share. These stock options have a term of five years and vest over a period of up to three years. The estimated fair value when granted of these options totalling $27 million is being recognized over the vesting period. The fair value was calculated using the Black-Scholes option pricing model based on a risk-free annual interest rate of up to 1.3%, an expected life of up to 3 years, an expected volatility of approximately 61% to 62%, and a dividend yield rate of nil. Option pricing models require the input of highly subjective assumptions regarding the expected volatility. Changes in assumptions can materially affect the fair value estimate. For the year ended December 31, 2018, share-based payments expense, relating to the vesting of stock options, was $18 million (2017 - $14 million), net of $3 million (2017 - $3 million) capitalized to mining interests. A summary of changes to stock options outstanding is as follows:
|  | Number of outstanding options |  |  | Weighted- average exercise price |
|  | (‘000’s) |  |  | (in Cdn.$) |
Outstanding at December 31, 2016 |  | 50,410 |  |  | 2.24 |
Granted |  | 22,968 |  |  | 3.65 |
Exercised |  | (13,708 | ) |  | 2.54 |
Forfeited or expired |  | (2,068 | ) |  | 3.27 |
Outstanding at December 31, 2017 |  | 57,602 |  |  | 2.70 |
Granted |  | 25,380 |  |  | 3.35 |
Exercised |  | (12,347 | ) |  | 2.40 |
Forfeited or expired |  | (3,003 | ) |  | 3.50 |
Outstanding at December 31, 2018 |  | 67,632 |  |  | 2.96 |
During 2018, 12 million (2017 – 14 million) stock options were exercised. The weighted average share price at the time of exercise was Cdn. $3.55 (2017 – Cdn. $3.87). Stock options outstanding and exercisable as at December 31, 2018 are as follows:
Range of exercise prices (in Cdn.$) | Number of outstanding options (‘000’s) |  | Weighted- average years to expiry |  | Weighted-average exercise price (in Cdn.$) |  | Number of exercisable options (‘000’s) |  | Weighted-average exercise price (in Cdn.$) |
1.12 – 1.99 | 8,513 |  | 2.09 |  | 1.12 |  | 7,558 |  | 1.12 |
2.00 – 2.99 | 10,610 |  | 1.35 |  | 2.08 |  | 10,174 |  | 2.05 |
3.00 – 3.99 | 48,434 |  | 3.91 |  | 3.47 |  | 19,590 |  | 3.50 |
4.00 – 4.99 | 75 |  | 3.10 |  | 4.05 |  | 50 |  | 4.05 |
| 67,632 |  | 3.28 |  | 2.96 |  | 37,372 |  | 2.63 |
Subsequent to December 31, 2018, the Company issued 10 million shares for proceeds of $20 million upon the exercise of stock options. Restricted share unit plan On May 6, 2011, the Company’s Board of Directors approved a Restricted Share Unit Plan (the “RSU Plan”) whereby restricted share units (“RSUs”) may be granted to directors, executive officers and employees of the Company. Adoption of the RSU Plan was part of the Company’s continuing effort to build upon and enhance long term shareholder value. The RSU Plan reflects the Company’s commitment to a long term incentive compensation structure that aligns the interests of its directors, executive officers and employees with the interests of its shareholders. Once vested, each RSU is redeemable for one common share entitling the holder to receive the common share for no additional consideration. During the year ended December 31, 2018, the Company granted approximately 1 million (2017 – 2 million) RSUs to executive officers and employees of the Company. One-third of the RSUs vested one year from the grant date, another one-third will vest two years from the grant date with the remainder vesting three years from the grant date. The total estimated fair value of the RSU granted was approximately $4 million (2017 - $5 million) based on the market value of the Company’s shares at the grant date. The fair value of each RSU is recorded as a share-based payments expense (and either charged to operations or capitalized to mining interests) over the vesting period. For the year ended December 31, 2018, share-based payments expense, relating to the vesting of RSUs, was $2 million (2017 - $4 million). Summary of changes to RSUs outstanding:
| Number of outstanding RSUs |
| (‘000’s) |
Outstanding at December 31, 2016 | 1,237 |
Granted | 1,793 |
Vested and converted to common shares | (1,760 | )
Outstanding at December 31, 2017 | 1,270 |
Granted | 1,455 |
Vested and converted to common shares | (671 | )
Outstanding at December 31, 2018 | 2,054 |
Incentive plan On June 29, 2007, the Company established the B2Gold Incentive Plan (the “Incentive Plan”) for the benefit of directors, officers, employees and service providers of the Company and issued to the trustees of the Incentive Plan options to acquire 4.955 million common shares. On October 12, 2007, following the exercise of these options, an aggregate of 4.955 million common shares were issued to and paid for by the trustees of the Incentive Plan. These shares were held in trust by the trustees pursuant to the terms of the Incentive Plan. The Company is required under IFRS to consolidate the trust. The Company recognizes a share-based compensation expense with respect to these incentive shares, when these shares are granted to the ultimate beneficiaries by the trust. Deferred share unit plan During the year ended December 31, 2017, the Company established a Deferred Share Unit plan (the "DSU plan") for the benefit of the directors of the Company. Pursuant to the plan, eligible directors can elect to receive all or part of their total cash compensation in the form of deferred share units ("DSUs"). The number of DSUs granted to an eligible director is determined by dividing the portion of the compensation to be paid in DSUs by the volume weighted average trading price of the common shares on the stock exchange on which the majority of the volume of trading of the shares occurred over the relevant period for the five trading days immediately preceding the date of grant. In addition, the Board may, at its discretion, grant additional DSUs to plan participants. Each eligible director will be required to hold DSUs received until the eligible director ceases to be a director of the Company, following which the DSUs will be settled in cash. For the year-ended December 31, 2018, the Company issued 291,000 DSUs (2017 - 225,000) with a fair market value of $1 million (2017 - $1 million) to directors of the Company. For the year ended December 31, 2018, share-based payments expense, relating to DSUs, was $1 million (2017 - $1 million) Earnings per share For the year-ended December 31, 2018, the impact of share issuances arising from conversion of the convertible notes during the period they were outstanding are included in the calculation of diluted weighted average shares outstanding and their impact removed from diluted net income attributable to shareholders of the Company as these securities are dilutive. The following is the calculation of diluted net income attributable to shareholders of the Company for the year:
|  | 2018 |  |  | 2017 |
|  | $ |  |  | $ |
Net income for the year (attributable to shareholders of the Company) |  | $ | 28,938 |  |  | $ | 56,852 |
Dilutive impact of gain on fair value of convertible notes |  | (10,651 | ) |  | — |
Diluted net income for the year (attributable to shareholders of the Company) |  | $ | 18,287 |  |  | $ | 56,852 |
The following is the calculation of diluted weighted average number of common shares outstanding for the year:
|  | 2018 |  |  | 2017 |
|  | $ |  |  | $ |
Basic weighted average number of common shares outstanding (in thousands) |  | 986,755 |  |  | 976,366 |
Effect of dilutive securities: |  |  |  |
Convertible notes |  | 49,393 |  |  | — |
Stock options |  | 10,762 |  |  | 14,627 |
Restricted share units |  | 458 |  |  | 420 |
Diluted weighted average number of common shares outstanding (in thousands) |  | 1,047,368 |  |  | 991,413 |
The following is the basic and diluted earnings per share:
|  | 2018 |  |  | 2017 |
|  | $ |  |  | $ |
Earnings per share (attributable to shareholders of the Company) |  |  |  |
Basic |  | $ | 0.03 |  |  | $ | 0.06 |
Diluted |  | $ | 0.02 |  |  | $ | 0.06 |

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