By Daniel Inman

HONG KONG -- Asian were mixed on Thursday, with gains in mining stocks helping Australia touch a six-year high in early trade.

The S&P ASX 200 rose by as much as 0.8% to 5,561.10, putting it marginally above its April peak of 5,554.5, as the market reacted well to a strong overnight session in the U.S. that pushed the Dow Jones Industrial Average (DJI) to close at a record high.

The expiration of July index options inflated trading volume early in Australia's trading day, and the market pared most of its gains as the session progressed to end less than 0.1% higher at 5,522.40.

Strong U.S. earnings reports and corporate-deal activity helped sentiment, as did comments from Federal Reserve Chairwoman Janet Yellen that the central bank would keep interest rates low for an extended time. But the lack of catalysts in Asia during the session led many markets to end close to the breakeven mark.

Miners in Australia added to gains from the previous session, the result of healthy production reports and better-than-expected Chinese growth data for the second quarter. Fortescue Metals Group added 1.8% and Rio Tinto was up 1.3%.

Also in Sydney, shares in Woodside Petroleum rose 0.6% after the company said its sales revenue jumped 25% in the second quarter and improved its production guidance.

Elsewhere in Asia, South Korea's Kospi gained 0.4% to 2,020.90. Japan's Nikkei rose less than 0.1% to 15,370.26, while the yen (USDJPY) was a touch stronger in Asian trade, last changing hands at Yen101.51 to the dollar from Yen101.68 late Wednesday in New York.

In China, stocks were mixed, with Hong Kong's Hang Seng Index ending flat at 23,520.87, while the Shanghai Composite lost 0.6% to 2,055.59.

In Taiwan, Taiwan Semiconductor Manufacturing Co. fell 4.6% as concerns about lost market share to rival Samsung Electronics spurred profit-taking. The move comes after the world's largest contract chip maker reported strong second-quarter results and an optimistic third-quarter forecast, and shares still remain up 18% year-to-date.

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