[Translation from Japanese to English ] I'm sorry that I did not answer your phone call. My number is [phone]. ...

Original text

お電話いただいたとのことで、出ることができなくてすみません。
[phone]が私の番号です。またこちらから電話をかけさせていただきます。
（しかし、私はあまり英語は得意ではないです。ほとんど話せません）
私達も、 long termのパートナーシップを希望しています。

私はEを日本で販売しており、日本で成功を収めています。
（その代わり、S社と御社の売上を奪ってしまっているのですが・・・）
御社の製品Aは日本で成功させる自信があります。
販売条件や価格など、お伺いできれば幸いです

Translation / English

I'm sorry that I did not answer your phone call.
My number is [phone].
I will call you later.
(However, I am not good at English and can hardly speak it.)
I would like to have a long-term partnership as well.

I have been successful selling E in Japan.
(I know our company is indeed taking share form S and your company.)
I am confidence of succeeding selling your product A in Japan.
I would appreciate it if you would tell me the condition of sales and the price.

Translation / English

I heard that I got a phone call from you, and am sorry for not answering.
[phone] is my phone number. I will call you back, again.
(But, I am not really good at English. I can barely speak English.)
We also would like to have a long term partner ship.

I sell E in Japan, and have achieved success.
(Alternatively, I deprive company S and you of the sales though...)
I am confident to achieve success with the product A of yours in Japan.
I would appreciate it if you would let me know the condition of sale, the price, and such.

Translation / English

I am sorry for having not been able to catch your call over the phone.
My number is [phone]. I will call you back again.
(However, I am not good at English. I can scarcely speak it.)
We also would like to establish a long term partnership.

I sell E in Japan and I have succeeded in Japan.
(Instead, Company S and you lose the sales opportunity due to me.)
I am quite confident that I can launch your product A in Japan successfully.
I would be happy if you can tell me the terms and conditions of the sales and the sales price.

Translation / English

I am sorry that I could not catch your call.
[phone] is my phone number.
I will call you again later.
(But I am not so good at English. I can speak English very little.)
We have also request for our long term partnership.

I get success in Japan by selling product E in Japan.
( But it means that I take some of sales percentage from company S and your company...)
I have confidence to lead success your product A in Japan.
I am happy if you tell me sales condition or price so on.