Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2018

Statements Line Items

Inventory [Policy Text Block]

(a)Inventory

Inventory components include raw materials and supplies used to assemble valves and manway covers, as well as finished valves and manway covers. All inventories are recorded at the lower of cost on a weighted average basis and net realizable value. The stated value of all inventories includes purchase and assembly costs of all raw materials and supplies, and attributable overhead and amortization. A regular review is undertaken to determine the extent of any provision forobsolescence.

Intangible assets [Policy Text Block]

(b)Intangible assets

Intangible assets acquired separately are measured on initial recognition at cost. Following initial recognition, intangible assets are carried at cost less any accumulated amortization and accumulated impairment losses, if any. The useful lives of intangible assets are assessed as either finite or indefinite.

Intangible assets with finite lives are amortized over the useful economic life and assessed for impairment whenever there is an indication that the intangible asset may be impaired. The amortization period and the amortization method for an intangible asset with a finite useful life are reviewed at least at the end of each reporting period. A change in the expected useful life of the expected pattern of consumption of future economic benefits embodied in the asset is accounted for by changing the amortization period or method, as appropriate, and treated as changes in accounting estimates. Intangible assets with indefinite useful lives are not amortized, but are tested for impairment annually, either individually or at the cash-generating unit level. The assessment of indefinite life is reviewed annually to determine whether the indefinite life continues to be supportable. If not, the change in useful life from indefinite to finite is made on a prospective basis.

The Company amortizes intangible assets with finite lives on a straight-line basis over their estimated useful lives as follows:

Patents - 5 years
Rights - 2 years

Amortization begins when the intangible asset is ready for use. Product and technology development costs, which meet the criteria for deferral and are expected to provide future economic benefits with reasonable certainty are deferred and amortized over the estimated life of the products or technology once commercializationcommences.

Property, plant and equipment [Policy Text Block]

(c)Property, plant and equipment

Property, plant and equipment are stated at cost less accumulated amortization. Leasehold improvements and prototypes are amortized on a straight-line basis over the lease term and estimated useful life respectively. Amortization is calculated over the estimated useful life of the property, plant and equipment at the following annualrates:

Building	- 4% declining-balance
Production equipment	- 20% declining-balance
Vehicles	- 30% declining-balance
Leasehold improvements	- 5 year straight-line
Prototype	- 2 year straight-line

Revenue recognition [Policy Text Block]

(d)Revenuerecognition

The Company has adopted IFRS 15 Revenue from Contracts with Customers effective January 1, 2018 with retroactive application. IFRS 15 establishes a comprehensive model for entities to use in accounting for revenue which reflects the consideration to which the entity is entitled from the sale of goods or services to customers.

Revenues from the sale of pressure relief valves, manway securement systems and related products is recognised when all the performance obligations identified in the customer contract, typically consisting of a purchase order, are satisfied. The performance obligations in a typical purchase order are the manufacture of the pressure relief valve, manway securement system and related accessories and delivery of thoseitems.

The adoption of IFRS 15 did not have any impact on the consolidated financial statements or opening balances.

Impairment of long-lived assets [Policy Text Block]

(e)Impairment of long-livedassets

The Company's tangible and intangible assets are reviewed for any indication of impairment at each statement of financial position date. If indication of impairment exists, the asset's recoverable amount is estimated. An impairment loss is recognized when the carrying amount of an asset, or its cash-generating unit, exceeds its recoverable amount. A cash-generating unit is the smallest identifiable group of assets that generates cash inflows that are largely independent of cash inflow from other assets or groups ofassets.

The recoverable amount is the greater of the asset's fair value less costs to sell and value in use. In assessing value in use, the estimated future cash flows are discounted to present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the assets. For an asset that does not generate largely independent cash inflows, the recoverable amount is determined for the cash-generating unit to which the assetbelongs.

Income taxes [Policy Text Block]

(f)Incometaxes

(i)Current and deferred incometaxes

Income tax expense, consisting of current and deferred tax expense, is recognized in the consolidated statements of operations. Current tax expense is the expected tax payable on the taxable income for the year, using tax rates enacted or substantively enacted at period-end, adjusted for amendments to tax payable with regard to previousyears.

Deferred tax assets and liabilities and the related deferred income tax expense or recovery are recognized for deferred tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using the enacted or substantively enacted tax rates expected to apply when the asset is realized or the liability settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income (loss) in the period that substantive enactmentoccurs.

A deferred tax asset is recognized to the extent that it is probable that future taxable profits will be available against which the asset can be utilized. To the extent that the Company does not consider it probable that a deferred tax asset will be recovered, the deferred tax asset is reduced. Deferred tax assets and liabilities are offset when there is a legally enforceable right to set off current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority and the Company intends to settle its current tax assets and liabilities on a net basis.

(ii)Texas margintax

Effective January 1, 2007, the state of Texas enacted an annual franchise tax known as the Texas margin tax, which is equal to 1% of the lesser of: (a) 70% of a taxable entity's revenue; and (b) 100% of total revenue less, at the election of the taxpayer: (i) cost of goods sold; or (ii) compensation. A provision for the margin tax owing has been recorded in the consolidated statements of operations and comprehensive income (loss).

Foreign currency translation [Policy Text Block]

(g)Foreign currencytranslation

The accounts of foreign balances and transactions are translated into USD as follows:

(i)Monetary assets and liabilities, at the rate of exchange in effect at theconsolidated statement of financial positiondate;

(ii)Non-monetary assets and liabilities, at the exchange rates prevailing at the time ofthe acquisition of the assets or assumption of the liabilities;and

(iii)Revenue and expense items (excluding amortization, which is translated at thesame rate as the related asset), at the rate of exchange prevailing at the transactiondate.

Gains and losses arising from translation of foreign currency are included in the determination of net income (loss).

Earnings per share [Policy Text Block]

(h)Earnings pershare

The Company presents basic earnings per share data for its common shares, calculated by dividing the earnings attributable to common shareholders of the Company by the weighted average number of shares outstanding during the period. The Company uses the treasury stock method for calculating diluted earnings per share. Under this method the dilutive effect on earnings per share is calculated on the use of the proceeds that could be obtained upon exercise of options, warrants and similar instruments. It assumes that the proceeds of such exercise would be used to purchase common shares at the average market price during the period. However, the calculation of diluted loss per share excludes the effects of various conversions and exercise of options and warrants that would be anti- dilutive.

Share-based expense [Policy Text Block]

(i)Share-based expense

The Company grants share options to acquire common shares of the Company to directors, officers, employees and consultants. The fair value of share-based expense to employees is measured at grant date, using the Black-Scholes option pricing model, and is recognized over the vesting period for employees using the graded vesting method. Fair value of share-based expenses for non-employees is recognized and measured at the date the goods or services are received based on the fair value of the goods or services received. If it is determined that the fair value of goods and services received cannot be reliably measured, the share-based expense is measured at the fair value of the equity instruments issued using the Black-Scholes option pricingmodel.

For both employees and non-employees, the fair value of share-based expense is recognized on the consolidated statements of operations and comprehensive income (loss), with a corresponding increase in reserves. The amount recognized as expense is adjusted to reflect the number of share options expected to vest. Consideration received on the exercise of stock options is recorded in capital stock and the related share-based expense in reserves is transferred to capitalstock.

Capital stock [Policy Text Block]

(j)Capitalstock

Proceeds from the exercise of stock options and warrants are recorded as capital stock in the amount for which the option or warrant enabled the holder to purchase a share in the Company. Any previously recorded share-based expense included in the share-based expenses reserve is transferred to capital stock on exercise of options. Capital stock issued for non-monetary consideration is valued at the closing market price at the date of issuance. The proceeds from the issuance of units are allocated between common shares and warrants based on the residual value method. Under this method, the proceeds are allocated first to capital stock based on the fair value of the common shares at the time the units are priced and any residual value is allocated to the warrants reserve. Consideration received for the exercise of warrants is recorded in capital stock, and any related amount recorded in warrants reserve is transferred to capitalstock.

Financial instruments [Policy Text Block]

(k)Financialinstruments

The Company has adopted IFRS 9 Financial Instruments ("IFRS 9") as of January 1, 2018. IFRS 9 replaces IAS 39 Financial Instruments: Recognition and Measurement ("IAS 39"). IFRS 9 utilizes a revised model for the classification and measurement of financial instruments and a single, forward-looking "expected loss" impairment model. Most of the requirements in IAS 39 for classification and measurement of financial liabilities were carried forward in IFRS 9, with the exception that for financial liabilities designated at fair value through profit or loss, the change in fair value that is attributable to changes in credit risk of that liability is presented in other comprehensive income (loss) instead of in statement of operations as previously applied. The adoption of IFRS 9 did not have any impact on the consolidated financial statements or opening balances.

The Company has classified its financial instruments as follows under IFRS 9 compared to the Company's previous accounting policy under IAS 39:

	IAS 39	IFRS 9
Financial Assets
Cash	Fair value through profit or loss ("FVTPL")	FVTPL
Accounts receivable	Loans and receivable at amortized cost	Amortized cost
Financial Liability
Accounts payable and accrued liabilities	Other financial liabilities at amortized cost	Amortized cost

(i)Financialassets

Initial recognition and measurement

A financial asset is measured initially at fair value plus, for an item not at fair value through profit or loss, transaction costs that are directly attributable to its acquisition or issue. On initial recognition, a financial asset is classified as measured at amortized cost or fair value through profit or loss. A financial asset is measured at amortized cost if it meets the conditions that i) the asset is held within a business model whose objective is to hold assets to collect contractual cash flows, ii) the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding, and iii) is not designated as fair value through profit orloss.

Subsequent measurement

The subsequent measurement of financial assets depends on their classification as follows:

Financial assets at fair value through profit or loss

Financial assets measured at fair value through profit and loss are carried in the consolidated statements of financial position at fair value with changes in fair value therein, recognized in the consolidated statements of operations and comprehensive income (loss).

Financial assets measured at amortized cost

A financial asset is subsequently measured at amortized cost, using the effective interest method and net of any impairment allowance, if:

•the asset is held within a business whose objective is to hold assets in order to collect contractual cash flows;and

•the contractual terms of the financial asset give rise, on specified dates, to cash flows that are solely payments of principal andinterest.

(ii)Derecognition

A financial asset or, where applicable a part of a financial asset or part of a group of similar financial assets is derecognized when:

•the contractual rights to receive cash flows from the asset have expired;or

•the Company has transferred its rights to receive cash flows from the asset or has assumed an obligation to pay the received cash flows in full without material delay to a third party under a 'pass-through' arrangement; and either (a) the Company has transferred substantially all the risks and rewards of the asset, or (b) the Company has neither transferred nor retained substantially all the risks and rewards of the asset, but has transferred control of theasset.

(iii)Financialliabilities

Financial liabilities are recognized when the Company becomes a party to the contractual provisions of the financial instrument. A financial liability is derecognized when it is extinguished, discharged, cancelled or when it expires. Financial liabilities are classified as either financial liabilities at fair value through profit or loss or financial liabilities subsequently measured at amortized cost. All interest-related charges are reported in profit or loss within interest expense, if applicable.

(iv)Fair valuehierarchy

The Company categorizes financial instruments measured at fair value at one of three levels according to the reliability of the inputs used to estimate fair values. The fair value of financial assets and financial liabilities included in Level 1 are determined by reference to quoted prices in active markets for identical assets and liabilities. Financial assets and liabilities in Level 2 are valued using inputs other than quoted prices for which all significant inputs are based on observable market data. Level 3 valuations are based on inputs that are not based on observable marketdata.