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    <link:label id="lab_phia_NetCapitalExpenditures_documentation_en" xlink:label="lab_phia_NetCapitalExpenditures" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en">Net capital expenditures</link:label>
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    <link:label id="lab_phia_DecreaseIncreaseInNonCurrentReceivablesAndOtherAssets_label_en" xlink:label="lab_phia_DecreaseIncreaseInNonCurrentReceivablesAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en">Decrease (increase) in non-current receivables and other assets</link:label>
    <link:label id="lab_phia_DecreaseIncreaseInNonCurrentReceivablesAndOtherAssets_documentation_en" xlink:label="lab_phia_DecreaseIncreaseInNonCurrentReceivablesAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en">Decrease (increase) in non-current receivables and other assets</link:label>
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    <link:label id="lab_phia_IncreaseDecreaseInReceivablesAndOtherCurrentAssets_label_en" xlink:label="lab_phia_IncreaseDecreaseInReceivablesAndOtherCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en">Increase (decrease) in receivables and other current assets</link:label>
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    <link:label id="lab_phia_DividendsReceivedFromInvestmentsInAssociatesClassifiedAsOperatingActivities_label_en" xlink:label="lab_phia_DividendsReceivedFromInvestmentsInAssociatesClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en">Dividends received from investments in associates, classified as operating activities</link:label>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_b5e2d932-e5aa-499e-96c5-1e660ece7805_totalLabel_en" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en">Increase (decrease) in working capital</link:label>
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    <link:label id="lab_phia_NetProceedsFromCashUsedForDerivativesAndCurrentFinancialAssets_documentation_en" xlink:label="lab_phia_NetProceedsFromCashUsedForDerivativesAndCurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en">Net proceeds from (cash used for) derivatives and current financial assets</link:label>
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    <link:label id="lab_phia_IncreaseDecreaseForwardContracts_label_en" xlink:label="lab_phia_IncreaseDecreaseForwardContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en">Increase (decrease) forward contracts</link:label>
    <link:label id="lab_phia_IncreaseDecreaseForwardContracts_documentation_en" xlink:label="lab_phia_IncreaseDecreaseForwardContracts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en">Increase (decrease) forward contracts</link:label>
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    <link:label id="lab_phia_IncreaseDecreaseInCashAndCashEquivalentsContinuingOperations_0d245de6-b10b-406f-85d2-cd526dfac8d4_totalLabel_en" xlink:label="lab_phia_IncreaseDecreaseInCashAndCashEquivalentsContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en">Increase (decrease) in cash and cash equivalents, continuing operations</link:label>
    <link:label id="lab_phia_IncreaseDecreaseInCashAndCashEquivalentsContinuingOperations_label_en" xlink:label="lab_phia_IncreaseDecreaseInCashAndCashEquivalentsContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en">Increase (decrease) in cash and cash equivalents, continuing operations</link:label>
    <link:label id="lab_phia_IncreaseDecreaseInCashAndCashEquivalentsContinuingOperations_documentation_en" xlink:label="lab_phia_IncreaseDecreaseInCashAndCashEquivalentsContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en">Increase (decrease) in cash and cash equivalents, continuing operations</link:label>
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