The servers of the Philippine subsidiary Coral Bay Nickel Corporation were infected with ransomware; however, there is no impact on production, and the effect on financial performance is expected to be minor.<\/p>\n","protected":false},"comment_status":"open","ping_status":"closed","template":"","meta":{"Ticker":"","DATE":"","longName":"","company_name_ja":"","fullTimeEmployees":0,"address":"","phone":"","website":"","industry":"","sector":"","regularMarketPrice":0,"financialCurrency":"","marketCap":0,"fiftyTwoWeekLow":0,"fiftyTwoWeekHigh":0,"epsTrailingTwelveMonths":0,"epsForward":0,"bookValue":0,"totalRevenue":0,"OperatingIncome":0,"operatingMargins":0,"NetIncome":0,"profitMargins":0,"ebitda":0,"trailingPE":0,"forwardPE":0,"priceToBook":0,"returnOnEquity":0,"recommendationMean":0,"recommendationKey":"","targetMeanPrice":0,"numberOfAnalystOpinions":0,"analyst_earnings_data":"","dividendRate":0,"dividendYield":0,"payoutRatio":0,"totalEsg":0,"environmentScore":0,"socialScore":0,"governanceScore":0,"title":"","providerPublishTime":"","link":"","longBusinessSummary":"","longBusinessSummary_ja":"","quarterly_revenue":0,"quarterly_net_income":0,"quarterly_operating_profit":0,"enterprise_value":0,"company_officer_1_name":"","company_officer_1_title":"","company_officer_2_name":"","company_officer_2_title":"","company_officer_3_name":"","company_officer_3_title":"","company_officer_4_name":"","company_officer_4_title":"","company_officer_5_name":"","company_officer_5_title":"","company_officers_update_time":"","get_dividend_history_year1":0,"get_dividend_history_year2":0,"get_dividend_history_year3":0,"get_dividend_history_year4":0,"get_dividend_history_year5":0,"get_dividend_history_year6":0,"get_dividend_history_year7":0,"get_dividend_history_year8":0,"get_dividend_history_year9":0,"get_dividend_history_year10":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"jir_stock_code":"5713","jir_company_name":"Sumitomo Metal Mining Co., Ltd.","jir_importance":"\u2605\u2605\u2605\u2606\u2606","jir_publication_date":"2026-04-08","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/04\/5713-20260408-01.pdf","jir_short_summary":"The servers of the Philippine subsidiary Coral Bay Nickel Corporation were infected with ransomware; however, there is no impact on production, and the effect on financial performance is expected to be minor.","jir_summary":"### Details and Impact Scope of Unauthorized Access\nOn April 2, 2026, two servers at the Philippine subsidiary Coral Bay Nickel Corporation (CBNC) were detected to be infected and encrypted by ransomware. The affected servers were immediately isolated, and with the support of external experts, investigations into the impact scope and restoration efforts are underway. There is no impact on the production plant's control systems, and operations continue, with no effect on other group sites.\n\n### Impact on Financial Results and Future Measures\nAt this time, the impact on the fiscal year ending March 2026 financial results is considered minor; however, careful examination including effects on earnings announcements is ongoing. Network disconnection is limited to CBNC and related Philippine subsidiaries, with no impact on sites outside the Philippines. Any new information will be promptly disclosed.","jir_financial_highlights":"Impact on Financial Performance: Minor (Unknown)\nProduction Plant Operation Status: Ongoing (Unknown)\nNetwork Disconnection Target: CBNC and 2 related Philippine subsidiaries (Unknown)","jir_category":"","jir_hashtags":"#SumitomoMetalMiningCoLtd, #GeneralIR, #JapaneseStocks","jir_key_figures":"Infection Date: April 2, 2026\nScope of Impact: Two servers of Coral Bay Nickel Corporation\nFinancial Impact: Minor (as of now)","jir_meta_title":"Sumitomo Metal Mining Notice of Unauthorized Access Damage to Philippine Subsidiary\u2019s IT System and Minor Financial Impact","jir_meta_description":"Sumitomo Metal Mining Co., Ltd. announced that servers of its Philippine subsidiary Coral Bay Nickel Corporation were infected by ransomware. There is no impact on production, and financial effects are expected to be minor.","jir_og_title":"Sumitomo Metal Mining Regarding Unauthorized Access Damage to Philippine Subsidiary","jir_og_description":"Unauthorized access occurred in the IT system of the Philippine subsidiary. Production continues without interruption, and financial impact is reported as minor.","jir_og_image_url":"\/assets\/og\/company-general_ir.jpg","jir_chart_data_collection":"[]","ir_related_company":7416,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"general_ir","footnotes":""},"sector":[],"importance":[],"class_list":["post-39383","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"\n