Consider the following statements about polyethylene terephthalate (PET), a widely used plastic:

1. PET fibres can be blended with natural fibres such as wool and cotton to make textiles.

2. PET is suitable for storing all types of alcoholic beverages without any risk of chemical leaching.

3. PET bottles can be recycled into new products such as fibre or packaging material.

4. Incinerating PET waste does not release any greenhouse gases.

How many of the statements given above are correct?