Pleased be informed that our prices have been raised by 5% due to market conditions.
Alternatives: Unfortunately, we had to raise prices by 5% due to market conditions.
(formal) I'd like to inform you about the recent price changes. We had to raise them by 5% due to market conditions. (informal) I'm just letting you know about the reason for the 5% price increase. It wa
The phrase is very commonly used especially in the east in formal letters. There is absolutely nothing wrong with the grammar, but personally i hate using it, its sounds almost commanding and judge like "Please be informed ...." funny though, i keep asking my staff not to use this phrase yet it almost always come up ....