1022 GMT - Palm oil ended lower, tracking weakness in the soybean oil market, according to David Ng, a trader at Kuala Lumpur-based Iceberg X. Recent weakness in export performance also weighs on the vegetable oil's price, he says. Ng sees prices for palm oil supported above 4,900 ringgit a ton and resistance at 5,050 ringgit a ton. The Bursa Malaysia Derivatives contract for November delivery falls 13 ringgit to 4,970 ringgit a ton.