Definition: Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.
Input: HELSINKI AFX - Outokumpu Technology said it has signed a 3.5 mln eur agreement with Mongolia 's Erdenet Mining Corporation for the engineering of the first HydroCopper plant to be built at the Erdenet mine site .
Output:
positive