33. Commitments

Offtake and stream purchase agreements

The following table summarizes the significant commitments to pay for gold, silver and diamonds to which Osisko has the contractual right pursuant to the associated precious metals and diamond purchase agreements:

	Attributable payable production to be purchased			Per ounce/carat cash payment (US$)			Term of agreement	Date of contract
Interest	Gold	Silver	Diamond	Gold	Silver	Diamond	Term of agreement	Date of contract
Amulsar stream⁽¹⁾^,(8)	4.22%	62.5%		$400	$4		40 years	November 2015
Amulsar offtake⁽²⁾^,(⁸⁾	81.91%			Based on quotational period			Until delivery of 2,110,425 ounces Au	November 2015
Back Forty stream	18.5%⁽³⁾	75%		30% spot price (max $600)	$4		Life of mine	March 2015
Mantos Blancos stream⁽⁴⁾		100%			8% spot		Life of mine	September 2015 Amended Aug. 2019
Renard stream⁽⁵⁾			9.6%			Lesser of 40% of sales price or $40	40 years	July 2014 Amended Oct. 2018
Sasa stream⁽⁶⁾		100%			$5		40 years	November 2015
Gibraltar stream⁽⁷⁾		75%			$2.75		Life of mine	March 2018

(1) Stream capped at 89,034 ounces of gold and 434,093 ounces of silver delivered. Subject to multiple buy-down options: 50% for $34.4 million and $31.3 million on 2^nd and 3^rd anniversary of commercial production, respectively.

(2) Offtake percentage will increase to 84.87% if Lydian elects to reduce the gold stream as outlined above. The Amulsar offtake applies to the sales from the first 2,110,425 ounces of refined gold, of which 1,853,751 ounces are attributable to OBL (less any ounces delivered pursuant to the Amulsar stream).

(3) The gold stream will be reduced to 9.25% after the delivery of 105,000 gold ounces.

(4) The stream percentage shall be payable on 100% of silver until 19,300,000 ounces have been delivered, after which the stream percentage will be 40%.

(5) The stream term shall be automatically extended beyond the initial term for successive 10-year periods. The Renard stream was amended in October 2018 (Note 14).

(6) The stream term shall be automatically extended beyond initial term for successive 10-year periods. 3% or consumer price index (CPI) per ounce price escalation after 2016.

(7) Under the silver stream, Osisko will make ongoing payments of US$2.75 per ounce of silver delivered. Osisko will receive from Taseko an amount equal to 100% of Gibco's share of silver production, which represents 75% of Gibraltar mine's production, until reaching the delivery to Osisko of 5.9 million ounces of silver, and 35% of Gibco's share of silver production thereafter.

(8) As at December 31, 2019, Lydian, the owner of the Amulsar project, was granted protection under the CCAA.

Investments in royalty and stream interests

As at December 31, 2019, significant commitments related to the acquisition of royalties and streams as detailed in the following table:

Company	Project (asset)	Installments	Triggering events

Aquila Resources Inc.	Back Forty project	US$10.0 million	Positive construction decision.
	(gold stream)	US$30.0 million	First drawdown on debt finance facility.

Falco Resources Ltd.	Horne 5 project (silver stream)	$20.0 million	Receipt of all necessary material third-party approvals, licenses, rights of way and surface rights on the property.
		$35.0 million	Receipt of all material construction permits, positive construction decision, and raising a minimum of $100.0 million in non-debt financing.
		$60.0 million	Upon total projected capital expenditure having been demonstrated to be financed.
		$40.0 million (optional)	Payable with fourth installment, at sole election of Osisko, to increase the silver stream to 100% of payable silver (from 90%).