FFP, June 19 (FFP)-Photoresist plates showed a high opening and walking trend in early trading, with Rong Da photosensitivity rising more than 10% and Tongyi shares up 5%. Nanda Optoelectronics, Shanghai Xinyang, Jingrui Electric Materials, Tongcheng New Materials and so on rose at the top. On the news, Rongda photosensitive forecast for the first half of the net profit of 40.9618 million yuan to 47.1682 million yuan, an increase of 98% UV 128% over the same period last year, net profit after deducting non-recurrent profits and losses of 39.1792 million yuan to 44.5708 million yuan, an increase of 148% over the same period last year.