Lafarge's third quarter financial results have coincided with the alarming news that terrorists attacked one of its cement plants in Nigeria. Thankfully nobody was hurt at the Ashaka plant. The suspected Boko Haram insurgents reportedly came looking for French nationals but the plant had been mostly evacuated following an earlier more violent incident at a nearby town. Instead they stole explosives and trucks and fled.

The resonance here with Lafarge's global financial situation is that rebel action elsewhere in the world was noted as having an adverse effect on the cement producer's coffers for the third quarter of 2013. In Iraq cement volumes have reportedly fallen by 15% in the year-to-date and almost halved in the third quarter, hit by an inability to transport cement across the country since June 2014, when Islamic State fighters captured parts of northern Iraq.

Looking at the nine months so far in 2014, Lafarge's sales have fallen by varying amounts with the exception of one territory: Middle East and Africa. Here, bucking the trend, sales rose by 3% to Euro2.8bn. The area had been the group's single largest sales region so far in 2014. Of course countries such as a South Africa are much more stable, but most other countries in the territory have had recent terrorism campaigns where a European-backed cement plant might present itself as a target.

This is not good news for a corporate balance sheet relying on these same countries to keep the profits up. However, as Lafarge states in its outlook, 'emerging markets continue to be the main driver of demand and Lafarge will benefit from its well-balanced geographic spread of high quality assets.' Spreading its bets geographically should pay off.

Also in its outlook, Lafarge announced that it intends to pause its stand-alone divestments pending completion of the planned merger with Holcim. The move suggests that the company is prioritising the impending merger over debt reduction. With Lafarge's and Holcim's recent formal notification to the European Commission of their proposed merger to obtain regulatory approval, the last of its necessary notifications worldwide, the merger is getting closer. So far, the original expectation of closure in the first half of 2015 does not look unreasonable.

When former British prime minister Harold Macmillian was asked what causes governments trouble, his apocryphal reply was, "Events, dear boy, events." The same applies to building materials producers. There may be more 'events' before the merger completes.