Yang Mei, Taiwan ( - Suzann Pettersen carded a 3-under 69 on Friday to claim a 5-stroke lead at the LPGA Taiwan Championship.

The defending champion finished 36 holes at Sunrise Golf & Country Club at 7- under-par 137.

Sun Young Yoo also shot 69 to grab a share of second place with Carlota Ciganda (70) at 2-under, while Katherine Hull-Kirk (70) and Beatriz Recari (71) are tied for fourth at 1-under.

Chella Choi (72), Hee Kyung Seo (70), Caroline Hedwall (73) and Alison Walshe (73) occupy sixth place at even-par 144.