The phrase "although it has suffered" is correct and usable in written English.
You can use it to introduce a contrast or concession regarding a subject that has experienced difficulties or challenges.
Example: "Although it has suffered significant losses in recent years, the company remains optimistic about its future growth."
Alternatives: "despite its struggles" or "even though it has faced challenges".
Although it has suffered its share of inaccuracies and hoaxes, it remains among the Internet's most visited sites -- bigger than eBay.
Although it has suffered a string of failures with its Falcon 1 rocket, it has a strong order book and the confidence of many in the industry.
"Although it has suffered losses, what remains is by Velázquez".
In the past, the base's core functions -- it is home to 18 fast-attack nuclear-powered submarines and the Navy's submarine school -- remained intact after the commission voted, although it has suffered some cuts.
The sector has tremendous potential for growth in Greece although it has suffered from the economic crisis, much as many other sectors of the economy.
Teegeeack was subsequently abandoned by the Galactic Confederacy and remains a pariah "prison planet" to this day, although it has suffered repeatedly from incursions by alien "Invader Forces" since that time.
And even AOL, although it had suffered a ten-per-cent drop in subscriber revenues, still produced a profit of nearly $1.2 billion.
This theory provides a good understanding of solar-energy generation, although for decades it has suffered from one potential problem.
After the war, the town continued to grow, although since 1960 it has suffered significant migrations to other Spanish regions and other European countries.
Brenda Loughery, the chief operating officer of Lizzie Grubman Public Relations, said that the company is doing fine, although she acknowledged that it had suffered, in part because of Ms. Grubman's arrest and its aftermath, and in part because of a falloff in party and event planning since the Sept. 11 attacks.
Although it, too, has suffered a cutback in state budget allocations, Chesapeake has set aside money for its long-range plan to add more services.
