Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.

Q: Kazgiprotsvetmet and Outotec Finland have signed an agreement on strategic cooperation in the marketing and providing of minerals processing and metallurgical plants and related services in Kazakhstan and the surrounding countries .

A: positive
****
Q: Both operating profit and sales for the three-month period increased , respectively from EUR0 .3 m and EUR13 .1 m , as compared to the corresponding period in 2005 .

A: positive
****
Q: Hobby Hall 's sales decrease 26 pct due to implementing a new information system that involved changing in the principal of posting sales .

A:
negative
****