POSCO Company Overview 2020

POSCO Overview POSCO Vision POSCO Business Key Activities POSCO Affiliates New Growth - Lithium-ion Battery Material Business Lithium-ion Battery Material Business Lithium-ion Battery Material Value Chain 2030 The world's only company that has completed a value chain, producing from raw materials to cathode, anode materials POSCO POSCO Chemical Global Market Share Annual Sales(KRW) Lithium 220,000 t per year, nickel 100,000 t per year Cathode materials 400,000 t per year, Anode materials 260,000 t per year 20% W K 23 萬 trillion 2018 2019 2020 2021 Li Acquired Argentina's salt lake, Salar del Hombre Muerto Total content 13.5 million t - Total value amounting to KRW 35 trilliona (in March 2021 market prices) - One of the highest lithium concentration In the world (921 mg/L) Constructed Gwangyang Cathode Plant (5,000 t) Expanded Sejong Natural Graphite Anode Plant (20,000 t) Reached the natural graphite production capacity of 44,000 t Established POSCO Group Lithium-ion battery material research center Joint venture between POSCO RIST POSCO CHEMICAL Entered into the battery recycling business Nickel, lithium, and cobalt extraction contributes to the environmentally friendly resource cycle Expanded Gwangyang Cathode Plant (25,000 t) Started the expansion of Sejong Natural Graphite Anode Plant (15,000 t) and the contruction of Pohang Artificial Graphite Plant (8,000 t) Ni Entered into the lithium extraction business Started the construction of Gwangyang Hardrock Lithium and Argentina brine Lithium Plant Secured natural graphite for anode production Acquired 15% share in Black Rock Mining Ltd, a mining company owning graphite mines in Tanzania Secured nickel materials for Cathode production Acquired 30% share in Ravensthorpe Nickel Operation, Australia Changes made to SNNC facilities will allow annual Nickel Sulphate production of 20,000 t per year 29

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