(ShareCast News) - RPC Group expects revenue in the first half to be significantly ahead of the same period last year thanks to acquisitions and continued organic growth.The plastic product design and engineering company said overall trading should be in line with management's expectations taking into account the adverse impact of the time lag in passing through higher polymer prices and the foreign exchange translation headwind.It noted that polymer prices reached an all-time high in July and said this will be reflected in selling prices of the group's products. However, they declined thereafter.RPC said the integration of Promens is progressing well, with the realisation of the previously announced cost synergies of €30m per annum coming in ahead of schedule, while further synergies are currently being assessed.The company said its financial position remains robust, with good cash flow development in the first half and significant headroom under its debt facilities.Chief executive Pim Vervaat said: "Our first half performance has been encouraging and further trading improvements are anticipated in the second half as polymer prices ease and additional Promens synergies are realised. The Vision 2020 strategy continues to generate further opportunities for growth."