Packaging Corporation of America reported fourth-quarter 2018 net income of $205 million, or $2.16 per share and $2.17 per share excluding special items. Fourth quarter net sales were $1.75 billion in 2018 and $1.68 billion in 2017. Full-year 2018 net income was $738 million, or $7.80 per share and $8.03 per share excluding special items. Full-year 2018 net sales were $7.01 billion compared to 2017 net sales of $6.44 billion.   “Our containerboard mills established a new fourth quarter productio...