POSCO Holdings(PKX)— Korean ADR Guide
2026 live implied price · ADR ratio 1:1 · US-Korea dividend tax guide
POSCO Holdings (KRX: 005490) is a leading Korean steel & battery materials company listed on KOSPI. In the US, it trades on the NYSE market as an American Depositary Receipt (ADR) under the ticker PKX. Korea's largest steelmaker, pivoting heavily into EV battery cathode materials and lithium. This page provides the live implied USD price based on the Korean share price, the ADR ratio (1 ADR = 1 ordinary share), the US-Korea dividend tax treaty treatment, and a US resident's guide to buying.
How US residents can buy POSCO Holdings (PKX)
- 1. Pick a broker. Charles Schwab, Fidelity, and Interactive Brokers (IBKR) all support trading PKX on the NYSE. IBKR has the cheapest commissions ($0.005/share, $1 minimum); Schwab and Fidelity are commission-free for this stock.
- 2. Place the order. Search for ticker PKX. It trades like any other NYSE-listed stock.
- 3. Trading hours. Standard US market hours, 9:30am–4:00pm ET. PKX prices are heavily influenced by the prior KOSPI close, but FX moves and US market sentiment during Korean market hours can cause gaps up or down.
POSCO Holdings ADR Dividend Taxation (US-Korea Tax Treaty)
- Korean withholding tax: 15% (preferential rate under the US-Korea treaty, vs. the standard 25%)
- US side: Claim a Foreign Tax Credit (Form 1116) to offset US tax owed on the same dividend income, avoiding double taxation
- Depositary bank (BNY Mellon, Citibank, etc.) ADR fee: typically $0.01–$0.05 per share, deducted automatically at dividend payment
- Form 1042-S: brokers issue this annually (late January) showing Korean tax withheld
Frequently Asked Questions
Can I buy POSCO Holdings from a US brokerage account?
Yes. PKX is listed on the NYSE as a sponsored ADR and trades like any US-listed stock at any major US brokerage (Schwab, Fidelity, Interactive Brokers, etc.).
How are PKX dividends taxed?
Under the US-Korea tax treaty, Korean withholding tax of 15% is deducted first. US residents can claim a foreign tax credit (Form 1116) to offset this against US tax owed. When POSCO Holdings pays dividends, ADR holders receive the equivalent in USD (after a small depositary fee).
Why does PKX sometimes trade at a different price than the Korean shares?
In theory, the ADR price should equal (Korean share price ÷ exchange rate) × ADR ratio. In practice, premiums or discounts arise from (1) time-zone gaps — Korea's market closes before US trading begins, (2) USD/KRW exchange rate moves, (3) limited ADR liquidity, and (4) arbitrage costs. Even sponsored NYSE ADRs show minute-by-minute deviations.
What does an ADR ratio of 1:1 mean?
It means 1 ADR represents 1 ordinary share of POSCO Holdings. With a 1:1 ratio, you only need to apply the USD/KRW exchange rate to compare prices directly.